Primary Offering Prospectus - Form 424B2

The information in this preliminary pricing supplement is not complete and may be changed. A registration statement relating to these securities has been filed with the Securities and Exchange Commission. This preliminary pricing supplement and the accompanying product supplement, underlying supplement, prospectus supplement and prospectus are not an offer to sell these securities, nor are they soliciting an offer to buy these securities, in any state where the offer or sale is not permitted. SUBJECT TO COMPLETION, DATED NOVEMBER 5, 2024

Citigroup Global Markets Holdings Inc.

November , 2024 Medium-Term Senior Notes, Series N Pricing Supplement No. 2024-USNCH24463 Filed Pursuant to Rule 424(b)(2) Registration Statement Nos. 333-270327 and 333-270327-01

Buffer Securities Linked to an Unequally Weighted Basket of Two Underlyings Due November 8, 2029

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The securities offered by this pricing supplement are unsecured debt securities issued by Citigroup Global Markets Holdings Inc. and guaranteed by Citigroup Inc. Unlike conventional debt securities, the securities do not pay interest and do not repay a fixed amount of principal at maturity. Instead, the securities offer a payment at maturity that may be greater than, equal to or less than the stated principal amount, depending on the performance of an unequally weighted basket composed of the underlyings specified below.

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The securities offer modified exposure to the performance of the basket from the initial basket value to the final basket value, with (i) the opportunity to participate in a limited range of potential appreciation of the basket at the upside participation rate specified below and (ii) a limited buffer against any depreciation of the basket as described below. In exchange for these features, investors in the securities must be willing to forgo any appreciation of the basket in excess of the maximum return at maturity specified below and must be willing to forgo any dividends with respect to any underlying. In addition, investors in the securities must be willing to accept downside exposure to any depreciation of the basket in excess of the buffer percentage specified below. If the basket depreciates by more than the buffer percentage from the initial basket value to the final basket value, you will lose 1% of the stated principal amount of your securities for every 1% by which that depreciation exceeds the buffer percentage.

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In order to obtain the modified exposure to the basket that the securities provide, investors must be willing to accept (i) an investment that may have limited or no liquidity and (ii) the risk of not receiving any amount due under the securities if we and Citigroup Inc. default on our obligations. All payments on the securities are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc.

KEY TERMS
Issuer:	Citigroup Global Markets Holdings Inc., a wholly owned subsidiary of Citigroup Inc.
Guarantee:	All payments due on the securities are fully and unconditionally guaranteed by Citigroup Inc.

Basket:	Underlying	Weighting	Initial underlying value*
	iShares® Silver Trust	2.5/10	$29.63
	SPDR® Gold Trust	7.5/10	$252.83

	*For each underlying, its closing value on the strike date
Stated principal amount:	$1,000 per security
Strike date:	November 4, 2024
Pricing date:	November 5, 2024
Issue date:	November 8, 2024
Valuation date:	November 5, 2029, subject to postponement if such date is not a scheduled trading day or certain market disruption events occur
Maturity date:	November 8, 2029
Payment at maturity:	You will receive at maturity for each security you then hold: § If the final basket value is greater than the initial basket value: $1,000 + the return amount, subject to the maximum return at maturity § If the final basket value is less than or equal to the initial basket value but greater than or equal to the final buffer value: $1,000 § If the final basket value is less than the final buffer value: $1,000 + [$1,000 × (the basket return + the buffer percentage)] If the final basket value is less than the final buffer value, which means that the basket has depreciated from the initial basket value by more than the buffer percentage, you will lose 1% of the stated principal amount of your securities at maturity for every 1% by which that depreciation exceeds the buffer percentage.
Initial basket value:	100
Final basket value:	100 × (1 + the sum of the weighted underlying returns of the underlyings)
Return amount:	$1,000 × the basket return × the upside participation rate
Upside participation rate:	130.00%
Basket return:	(i) The final basket value minus the initial basket value, divided by (ii) the initial basket value
Weighted underlying return:	For each underlying, its underlying return multiplied by its weighting
Final underlying value:	For each underlying, its closing value on the valuation date
Underlying return:	For each underlying, (i) its final underlying value minus its initial underlying value, divided by (ii) its initial underlying value
Maximum return at maturity:	The maximum return at maturity will be determined on the pricing date and will be at least $760.00 per security (at least 76.00% of the stated principal amount). The payment at maturity per security will not exceed the stated principal amount plus the maximum return at maturity.
Final buffer value:	70.00, 70.00% of the initial basket value
Buffer percentage:	30.00%
Listing:	The securities will not be listed on any securities exchange
CUSIP / ISIN:	17333AZJ1 / US17333AZJ14
Underwriter:	Citigroup Global Markets Inc. ("CGMI"), an affiliate of the issuer, acting as principal
Underwriting fee and issue price:	Issue price(1)	Underwriting fee(2)	Proceeds to issuer(3)
Per security:	$1,000.00	$6.00	$994.00
Total:	$	$	$

(1) Citigroup Global Markets Holdings Inc. currently expects that the estimated value of the securities on the pricing date will be at least $905.50 per security, which will be less than the issue price. The estimated value of the securities is based on CGMI's proprietary pricing models and our internal funding rate. It is not an indication of actual profit to CGMI or other of our affiliates, nor is it an indication of the price, if any, at which CGMI or any other person may be willing to buy the securities from you at any time after issuance. See "Valuation of the Securities" in this pricing supplement.

(2) CGMI will receive an underwriting fee of up to $6.00 for each security sold in this offering. The total underwriting fee and proceeds to issuer in the table above give effect to the actual total underwriting fee. For more information on the distribution of the securities, see "Supplemental Plan of Distribution" in this pricing supplement. In addition to the underwriting fee, CGMI and its affiliates may profit from expected hedging activity related to this offering, even if the value of the securities declines. See "Use of Proceeds and Hedging" in the accompanying prospectus.

(3) The per security proceeds to issuer indicated above represent the minimum per security proceeds to issuer for any security, assuming the maximum per security underwriting fee. As noted above, the underwriting fee is variable.

Investing in the securities involves risks not associated with an investment in conventional debt securities. See "Summary Risk Factors" beginning on page PS-5.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of the securities or determined that this pricing supplement and the accompanying product supplement, underlying supplement, prospectus supplement and prospectus are truthful or complete. Any representation to the contrary is a criminal offense.

You should read this pricing supplement together with the accompanying product supplement, underlying supplement, prospectus supplement and prospectus, which can be accessed via the hyperlinks below:

Product Supplement No. EA-02-10 dated March 7, 2023 Underlying Supplement No. 11 dated March 7, 2023
Prospectus Supplement and Prospectus each dated March 7, 2023

The securities are not bank deposits and are not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency, nor are they obligations of, or guaranteed by, a bank.

Additional Information

General. The terms of the securities are set forth in the accompanying product supplement, prospectus supplement and prospectus, as supplemented by this pricing supplement. The accompanying product supplement, prospectus supplement and prospectus contain important disclosures that are not repeated in this pricing supplement. For example, the accompanying product supplement contains important information about how the closing value of each underlying will be determined and about adjustments that may be made to the terms of the securities upon the occurrence of market disruption events and other specified events with respect to each underlying. The accompanying underlying supplement contains information about one of the underlyings that is not repeated in this pricing supplement. It is important that you read the accompanying product supplement, underlying supplement, prospectus supplement and prospectus together with this pricing supplement before deciding whether to invest in the securities. Certain terms used but not defined in this pricing supplement are defined in the accompanying product supplement.

Closing Value. The "closing value" of each underlying on any date is the closing price of its underlying shares on such date, as provided in the accompanying product supplement. The "underlying shares" of the underlyings are their respective shares that are traded on a U.S. national securities exchange. Please see the accompanying product supplement for more information.

Payout Diagram

The diagram below illustrates your payment at maturity for a range of hypothetical basket returns. The diagram assumes that the maximum return at maturity will be set at the lowest value indicated on the cover page of this pricing supplement. The actual maximum return at maturity will be determined on the pricing date.

Investors in the securities will not receive any dividends with respect to the underlyings. The diagram and examples below do not show any effect of lost dividend yield over the term of the securities. See "Summary Risk Factors-You will not receive dividends or have any other rights with respect to the underlyings" below.

Payout Diagram
n The Securities	n The Basket

Hypothetical Examples

The examples below illustrate how to determine the payment at maturity on the securities, assuming the various hypothetical final basket values indicated below. The examples are solely for illustrative purposes, do not show all possible outcomes and are not a prediction of what the actual payment at maturity on the securities will be. The actual payment at maturity will depend on the actual final basket value.

The examples below are based on the following hypothetical values and do not reflect the actual initial underlying values of the underlyings. For the actual initial underlying value of each underlying, see the cover page of this pricing supplement. We have used these hypothetical values, rather than the actual values, to simplify the calculations and aid understanding of how the securities work. However, you should understand that the actual payment at maturity on the securities will be calculated based on the actual initial underlying value of each underlying, and not these hypothetical values. For ease of analysis, figures below have been rounded. The examples below assume that the maximum return at maturity will be set at the lowest value indicated on the cover page of this pricing supplement. The actual maximum return at maturity will be determined on the pricing date.

Underlying	Hypothetical initial underlying value
iShares® Silver Trust	$100.00
SPDR® Gold Trust	$100.00

Example 1-Upside Scenario A. The final basket value is 105.00, resulting in a 5.00% basket return. In this example, the final basket value is greater than the initial basket value.

Underlying	Hypothetical Final Underlying Value	Hypothetical Underlying Return	Weighting	Hypothetical Weighted Underlying Return
iShares® Silver Trust	$90.00	-10.00%	2.5/10	-2.50%
SPDR® Gold Trust	$110.00	10.00%	7.5/10	7.50%
			Sum of the hypothetical weighted underlying returns:	5.00%
			Hypothetical final basket value:	100 × (1 + the sum of the hypothetical weighted underlying returns) = 100 × (1 + 5.00%) = 105.00000

Payment at maturity per security = $1,000 + the return amount, subject to the maximum return at maturity

= $1,000 + ($1,000 × the basket return × the upside participation rate), subject to the maximum return at maturity

= $1,000 + ($1,000 × 5.00% × 130.00%), subject to the maximum return at maturity

= $1,000 + $65.00, subject to the maximum return at maturity

= $1,065.00

In this scenario, the basket has appreciated from the initial basket value to the final basket value, and the basket return multiplied by the upside participation rate is less than the maximum return at maturity. As a result, your total return at maturity would equal the basket return multiplied by the upside participation rate.

Example 2-Upside Scenario B. The final basket value is 190.00, resulting in a 90.00% basket return. In this example, the final basket value is greater than the initial basket value.

Underlying	Hypothetical Final Underlying Value	Hypothetical Underlying Return	Weighting	Hypothetical Weighted Underlying Return
iShares® Silver Trust	$120.00	20.00%	2.5/10	5.00%
SPDR® Gold Trust	$213.33333	113.33333%	7.5/10	85.00%
			Sum of the hypothetical weighted underlying returns	90.00%
			Hypothetical final basket value:	100 × (1 + the sum of the hypothetical weighted underlying returns) = 100 × (1 + 90.00%) = 190.00000

Payment at maturity per security = $1,000 + the return amount, subject to the maximum return at maturity

= $1,000 + ($1,000 × the basket return × the upside participation rate), subject to the maximum return at maturity

= $1,000 + ($1,000 × 90.00% × 130.00%), subject to the maximum return at maturity

= $1,000 + $1,170.00, subject to the maximum return at maturity

= $1,760.00

In this scenario, the basket has appreciated from the initial basket value to the final basket value, but the basket return multiplied by the upside participation rate would exceed the maximum return at maturity. As a result, your total return at maturity in this scenario would be limited to the maximum return at maturity, and an investment in the securities would underperform a hypothetical alternative investment providing 1-to-1 exposure to the appreciation of the basket without a maximum return.

Example 3-Par Scenario. The final basket value is 95.00, resulting in a -5.00% basket return. In this example, the final basket value is less than the initial basket value but greater than the final buffer value.

Underlying	Hypothetical Final Underlying Value	Hypothetical Underlying Return	Weighting	Hypothetical Weighted Underlying Return
iShares® Silver Trust	$75.00	-25.00%	2.5/10	-6.25%
SPDR® Gold Trust	$101.66667	1.66667%	7.5/10	1.25%
			Sum of the hypothetical weighted underlying returns	-5.00%
			Hypothetical final basket value:	100 × (1 + the sum of the hypothetical weighted underlying returns) = 100 × (1 + -5.00%) = 95.00000

Payment at maturity per security = $1,000

In this scenario, the basket has depreciated from the initial basket value to the final basket value, but not by more than the buffer percentage. As a result, you would be repaid the stated principal amount of your securities at maturity but would not receive any positive return on your investment.

Example 4-Downside Scenario. The final basket value is 30.00, resulting in a -70.00% basket return. In this example, the final basket value is less than the final buffer value.

Underlying	Hypothetical Final Underlying Value	Hypothetical Underlying Return	Weighting	Hypothetical Weighted Underlying Return
iShares® Silver Trust	$50.00	-50.00%	2.5/10	-12.50%
SPDR® Gold Trust	$23.33333	-76.66667%	7.5/10	-57.50%
			Sum of the hypothetical weighted underlying returns	-70.00%
			Hypothetical final basket value:	100 × (1 + the sum of the hypothetical weighted underlying returns) = 100 × (1 + -70.00%) = 30.00000

Payment at maturity per security = $1,000 + [$1,000 × (the basket return + the buffer percentage)]

= $1,000 + [$1,000 × (-70.00% + 30.00%)]

= $1,000 + [$1,000 × -40.00%]

= $1,000 + -$400.00

= $600.00

In this scenario, the basket has depreciated from the initial basket value to the final basket value by more than the buffer percentage. As a result, your total return at maturity in this scenario would be negative and would reflect 1-to-1 exposure to the negative performance of the basket beyond the buffer percentage.

Summary Risk Factors

An investment in the securities is significantly riskier than an investment in conventional debt securities. The securities are subject to all of the risks associated with an investment in our conventional debt securities (guaranteed by Citigroup Inc.), including the risk that we and Citigroup Inc. may default on our obligations under the securities, and are also subject to risks associated with the basket. Accordingly, the securities are suitable only for investors who are capable of understanding the complexities and risks of the securities. You should consult your own financial, tax and legal advisors as to the risks of an investment in the securities and the suitability of the securities in light of your particular circumstances.

The following is a summary of certain key risk factors for investors in the securities. You should read this summary together with the more detailed description of risks relating to an investment in the securities contained in the section "Risk Factors Relating to the Securities" beginning on page EA-7 in the accompanying product supplement. You should also carefully read the risk factors included in the accompanying prospectus supplement and in the documents incorporated by reference in the accompanying prospectus, including Citigroup Inc.'s most recent Annual Report on Form 10-K and any subsequent Quarterly Reports on Form 10-Q, which describe risks relating to the business of Citigroup Inc. more generally.

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You may lose a significant portion of your investment. Unlike conventional debt securities, the securities do not repay a fixed amount of principal at maturity. Instead, your payment at maturity will depend on the performance of the basket. If the basket depreciates by more than the buffer percentage from the initial basket value to the final basket value, you will lose 1% of the stated principal amount of your securities for every 1% by which that depreciation exceeds the buffer percentage.

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The initial basket values, which were set on the strike date, may be higher than the closing values of the underlyings on the pricing date. If the closing values of the underlyings on the pricing date are less than the initial basket values that were set on the strike date, the terms of the securities may be less favorable to you than the terms of an alternative investment that may be available to you that offers a similar payout as the securities but with the initial basket values set on the pricing date.

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Your potential return on the securities is limited. Your potential total return on the securities at maturity is limited to the maximum return at maturity, even if the basket appreciates by significantly more than the maximum return at maturity. If the basket appreciates by more than the maximum return at maturity, the securities will underperform an alternative investment providing 1-to-1 exposure to the performance of the basket. When lost dividends are taken into account, the securities may underperform an alternative investment providing 1-to-1 exposure to the performance of the basket even if the basket appreciates by less than the maximum return at maturity. In addition, the maximum return at maturity reduces the effect of the upside participation rate for all final basket values exceeding the final basket value at which, by multiplying the corresponding basket return by the upside participation rate, the maximum return at maturity is reached.

§	The securities do not pay interest. Unlike conventional debt securities, the securities do not pay interest or any other amounts prior to maturity. You should not invest in the securities if you seek current income during the term of the securities.

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You will not receive dividends or have any other rights with respect to the underlyings. You will not receive any dividends with respect to the underlyings. This lost dividend yield may be significant over the term of the securities. The payment scenarios described in this pricing supplement do not show any effect of such lost dividend yield over the term of the securities. In addition, you will not have voting rights or any other rights with respect to the underlyings or the stocks included in the underlyings.

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Your payment at maturity depends on the value of the basket on a single day. Because your payment at maturity depends on the value of the basket solely on the valuation date, you are subject to the risk that the value of the basket on that day may be lower, and possibly significantly lower, than on one or more other dates during the term of the securities. If you had invested directly in the underlyings or in another instrument linked to the basket that you could sell for full value at a time selected by you, or if the payment at maturity were based on an average of closing values of the basket, you might have achieved better returns.

§	The securities are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc. If we default on our obligations under the securities and Citigroup Inc. defaults on its guarantee obligations, you may not receive anything owed to you under the securities.

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The securities will not be listed on any securities exchange and you may not be able to sell them prior to maturity. The securities will not be listed on any securities exchange. Therefore, there may be little or no secondary market for the securities. CGMI currently intends to make a secondary market in relation to the securities and to provide an indicative bid price for the securities on a daily basis. Any indicative bid price for the securities provided by CGMI will be determined in CGMI's sole discretion, taking into account prevailing market conditions and other relevant factors, and will not be a representation by CGMI that the securities can be sold at that price, or at all. CGMI may suspend or terminate making a market and providing indicative bid prices without notice, at any time and for any reason. If CGMI suspends or terminates making a market, there may be no secondary market at all for the securities because it is likely that CGMI will be the only broker-dealer that is willing to buy your securities prior to maturity. Accordingly, an investor must be prepared to hold the securities until maturity.

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The estimated value of the securities on the pricing date, based on CGMI's proprietary pricing models and our internal funding rate, will be less than the issue price. The difference is attributable to certain costs associated with selling, structuring and hedging the securities that are included in the issue price. These costs include (i) any selling concessions or other fees paid in connection with the offering of the securities, (ii) hedging and other costs incurred by us and our affiliates in connection with the offering of the securities and (iii) the expected profit (which may be more or less than actual profit) to CGMI or other of our affiliates in connection with hedging our obligations under the securities. These costs adversely affect the economic terms of the securities because, if they were lower, the economic terms of the securities would be more favorable to you. The economic terms of the securities are also likely to be adversely affected by the use of our internal funding rate, rather than our secondary market rate, to price the securities. See "The estimated value of the securities would be lower if it were calculated based on our secondary market rate" below.

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The estimated value of the securities was determined for us by our affiliate using proprietary pricing models. CGMI derived the estimated value disclosed on the cover page of this pricing supplement from its proprietary pricing models. In doing so, it may have made discretionary judgments about the inputs to its models, such as the volatility of, and correlation between, the closing values of the underlyings, dividend yields on the underlyings and interest rates. CGMI's views on these inputs may differ from your or others' views, and as an underwriter in this offering, CGMI's interests may conflict with yours. Both the models and the inputs to the models may prove to be wrong and therefore not an accurate reflection of the value of the securities. Moreover, the estimated value of the securities set forth on the cover page of this pricing supplement may differ from the value that we or our affiliates may determine for the securities for other purposes, including for accounting purposes. You should not invest in the securities because of the estimated value of the securities. Instead, you should be willing to hold the securities to maturity irrespective of the initial estimated value.

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The estimated value of the securities would be lower if it were calculated based on our secondary market rate. The estimated value of the securities included in this pricing supplement is calculated based on our internal funding rate, which is the rate at which we are willing to borrow funds through the issuance of the securities. Our internal funding rate is generally lower than our secondary market rate, which is the rate that CGMI will use in determining the value of the securities for purposes of any purchases of the securities from you in the secondary market. If the estimated value included in this pricing supplement were based on our secondary market rate, rather than our internal funding rate, it would likely be lower. We determine our internal funding rate based on factors such as the costs associated with the securities, which are generally higher than the costs associated with conventional debt securities, and our liquidity needs and preferences. Our internal funding rate is not an interest rate that is payable on the securities.

Because there is not an active market for traded instruments referencing our outstanding debt obligations, CGMI determines our secondary market rate based on the market price of traded instruments referencing the debt obligations of Citigroup Inc., our parent company and the guarantor of all payments due on the securities, but subject to adjustments that CGMI makes in its sole discretion. As a result, our secondary market rate is not a market-determined measure of our creditworthiness, but rather reflects the market's perception of our parent company's creditworthiness as adjusted for discretionary factors such as CGMI's preferences with respect to purchasing the securities prior to maturity.

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The estimated value of the securities is not an indication of the price, if any, at which CGMI or any other person may be willing to buy the securities from you in the secondary market. Any such secondary market price will fluctuate over the term of the securities based on the market and other factors described in the next risk factor. Moreover, unlike the estimated value included in this pricing supplement, any value of the securities determined for purposes of a secondary market transaction will be based on our secondary market rate, which will likely result in a lower value for the securities than if our internal funding rate were used. In addition, any secondary market price for the securities will be reduced by a bid-ask spread, which may vary depending on the aggregate stated principal amount of the securities to be purchased in the secondary market transaction, and the expected cost of unwinding related hedging transactions. As a result, it is likely that any secondary market price for the securities will be less than the issue price.

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The value of the securities prior to maturity will fluctuate based on many unpredictable factors. The value of your securities prior to maturity will fluctuate based on the closing values of the underlyings, the volatility of, and correlation between, the closing values of the underlyings, dividend yields on the underlyings, interest rates generally, the time remaining to maturity and our and Citigroup Inc.'s creditworthiness, as reflected in our secondary market rate, among other factors described under "Risk Factors Relating to the Securities-Risk Factors Relating to All Securities-The value of your securities prior to maturity will fluctuate based on many unpredictable factors" in the accompanying product supplement. Changes in the closing values of the underlyings may not result in a comparable change in the value of your securities. You should understand that the value of your securities at any time prior to maturity may be significantly less than the issue price.

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Immediately following issuance, any secondary market bid price provided by CGMI, and the value that will be indicated on any brokerage account statements prepared by CGMI or its affiliates, will reflect a temporary upward adjustment. The amount of this temporary upward adjustment will steadily decline to zero over the temporary adjustment period. See "Valuation of the Securities" in this pricing supplement.

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Changes in the closing values of the underlyings may offset each other. The performances of the underlyings may not be correlated with each other. If one of the underlyings appreciates, the other underlying may not appreciate as much or may even depreciate. In such event, the appreciation of one of the underlyings may be moderated, wholly offset or more than offset by lesser appreciation or by depreciation in the value of the other underlying.

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The underlyings may be highly correlated in decline. The performances of the underlyings may become highly correlated during periods of declining prices. This may occur because of events that have broad effects on markets generally or on the markets that the underlyings track. If the underlyings become correlated in decline, the depreciation of one underlying will not be offset by the performance of the other underlying and, in fact, each underlying may contribute to an overall decline from the initial basket value to the final basket value.

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An investment in the securities is not a diversified investment. The fact that the securities are linked to a basket does not mean that the securities represent a diversified investment. First, although the underlyings differ in important respects, they each track the performance of equity markets, and each may perform poorly if there is a global downturn in equity markets. Second, the securities are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc. No amount of diversification that may be represented by the underlyings will offset the risk that we and Citigroup Inc. may default on our obligations.

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The underlyings are unequally weighted. Accordingly, the performance of the underlying with the highest weighting will influence the payment at maturity to a greater degree than the performance of the underlying with the lower weighting. If the underlying with the highest weighting performs poorly, its poor performance could negate or diminish the effect on the basket return of any positive performance by the lower-weighted underlying.

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The securities are subject to risks associated with silver. The iShares® Silver Trust seeks to reflect generally the performance of the price of silver, less the iShares® Silver Trust's expenses and liabilities. The price of silver is primarily affected by global demand for and supply of silver. Silver prices can fluctuate widely and may be affected by numerous factors. These include general economic trends, technical developments, substitution issues and regulation, as well as specific factors including industrial and jewelry demand, expectations with respect to the rate of inflation, the relative strength of the U.S. dollar (the currency in which the price of silver is generally quoted) and other currencies, interest rates, central bank sales, forward sales by producers, global or regional political or economic events and production costs and disruptions in major silver-producing countries, such as Mexico, China and Peru. The demand for and supply of silver affect silver prices, but not necessarily in the same manner as supply and demand affect the prices of other commodities. The supply of silver consists of a combination of new mine production and existing stocks of bullion and fabricated silver held by governments, public and private financial institutions, industrial organizations and private individuals. In addition, the price of silver has on occasion been subject to very rapid short-term changes due to speculative activities. From time to time, above-ground inventories of silver may also influence the market. The major end uses for silver include industrial applications, jewelry and silverware. It is not possible to predict the aggregate effect of all or any combination of these factors.

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The securities are subject to risks associated with gold. The investment objective of the SPDR® Gold Trust is to reflect the performance of the price of gold bullion, less the expenses of the SPDR® Gold Trust's operations. The price of gold is primarily affected by the global demand for and supply of gold. The market for gold bullion is global, and gold prices are subject to volatile price movements over short periods of time and are affected by numerous factors, including macroeconomic factors, such as the structure of and confidence in the global monetary system, expectations regarding the future rate of inflation, the relative strength of, and confidence in, the U.S. dollar (the currency in which the price of gold is usually quoted), interest rates, gold borrowing and lending rates and global or regional economic, financial, political, regulatory, judicial or other events. Gold prices may be affected by industry factors, such as industrial and jewelry demand as well as lending, sales and purchases of gold by the official sector, including central banks and other governmental agencies and multilateral institutions that hold gold. Additionally, gold prices may be affected by levels of gold production, production costs and short-term changes in supply and demand due to trading activities in the gold market. From time to time, above-ground inventories of gold may also influence the market. It is not possible to predict the aggregate effect of all or any combination of these factors. The price of gold has recently been, and may continue to be, extremely volatile.

§	You will not have any rights with respect to the commodities held by the underlyings.

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The underlyings are not investment companies or commodity pools and will not be subject to regulation under the Investment Company Act of 1940, as amended, or the Commodity Exchange Act. Accordingly, you will not benefit from any regulatory protections afforded to persons who invest in regulated investment companies or commodity pools.

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The performance and market value of each underlying, particularly during periods of market volatility, may not correlate with the performance of its respective underlying commodity as well as the net asset value per share. Each underlying does not fully replicate the performance of its respective underlying commodity, which is silver with respect to the iShares® Silver Trust and gold with respect to the SPDR® Gold Trust, due to the fees and expenses charged by such underlying or by restrictions on access to its respective underlying commodity due to other circumstances. Each underlying does not generate any income, and as each underlying regularly sells its respective underlying commodity to pay for ongoing expenses, the amount of its respective underlying commodity represented by each share gradually declines over time. Each underlying sells its respective underlying commodity to pay expenses on an ongoing basis irrespective of whether the trading price of the shares rises or falls in response to changes in the price of its respective underlying commodity. The sale by each underlying of its respective underlying commodity to pay expenses at a time of low prices for its respective underlying commodity could adversely affect the value of the securities. Additionally, there is a risk that some or all of each underlying's holdings in its respective underlying commodity could be lost, damaged or stolen. Access to each underlying's respective underlying commodity could also be restricted by natural events (such as an earthquake) or human actions (such as a terrorist attack). All of these factors may lead to a lack of correlation between the performance of each underlying and its respective underlying commodity. In addition, because the underlying shares are traded on a securities exchange and are subject to market supply and investor demand, the market value of one share of each underlying may differ from the net asset value per share of such underlying.

During periods of market volatility, each underlying's respective underlying commodity may be unavailable in the secondary market, market participants may be unable to calculate accurately the net asset value per share of the underlying shares and the liquidity of the underlying shares may be adversely affected. This kind of market volatility may also disrupt the ability of market participants to create and redeem shares of the underlying shares. Further, market volatility may adversely affect, sometimes materially, the prices at which market participants are willing to buy and sell shares of the underlying shares. As a result, under these circumstances, the market value of shares of the underlying shares may vary substantially from the net asset value per share of the underlying shares. For all of the foregoing reasons, the performance of each underlying may not correlate with the performance of its respective underlying commodity as well as the net asset value per share of such underlying, which could materially and adversely affect the value of the securities in the secondary market and/or reduce any payment on the securities.

§

There are risks relating to commodities trading on the London Bullion Market Association. The iShares® Silver Trust seeks to reflect generally the performance of the price of silver, less the iShares® Silver Trust's expenses and liabilities. The investment objective of the SPDR® Gold Trust is to reflect the performance of the price of gold bullion, less the expenses of the SPDR® Gold Trust's operations. The prices silver and gold are determined by the London Bullion Market Association ("LBMA") or an independent service provider appointed by the LBMA. The LBMA is a self-regulatory association of bullion market participants. Although all market-making members of the LBMA are supervised by the Bank of England and are required to satisfy a capital adequacy test, the LBMA itself is not a regulated entity. If the LBMA should cease operations, or if bullion trading should become subject to a value added tax or other tax or any other form of regulation currently not in place, the role of the LBMA silver price and LBMA gold price as a global benchmark for the value of silver and gold, respectively, may be adversely affected. The LBMA is a principals' market, which operates in a manner more closely analogous to an over-the-counter physical commodity market than regulated futures markets, and certain features of U.S. futures

contracts are not present in the context of LBMA trading. For example, there are no daily price limits on the LBMA, which would otherwise restrict fluctuations in the prices of LBMA contracts. In a declining market, it is possible that prices would continue to decline without limitation within a trading day or over a period of trading days. The LBMA may alter, discontinue or suspend calculation or dissemination of the LBMA silver price or LBMA gold price, which could adversely affect the value of the securities. The LBMA, or an independent service provider appointed by the LBMA, will have no obligation to consider your interests in calculating or revising the LBMA silver price or LBMA gold price.

§

Single commodity prices tend to be more volatile than, and may not correlate with, the prices of commodities generally. Each underlying is linked to a single commodity and not to a diverse basket of commodities or a broad-based commodity index. Each underlying's respective underlying commodity may not correlate to the price of commodities generally and may diverge significantly from the prices of commodities generally. As a result, the securities carry greater risk and may be more volatile than securities linked to the prices of more commodities or a broad-based commodity index.

§

Our offering of the securities is not a recommendation of the basket or the underlyings. The fact that we are offering the securities does not mean that we believe that investing in an instrument linked to the basket or any of the underlyings is likely to achieve favorable returns. In fact, as we are part of a global financial institution, our affiliates may have positions (including short positions) in the underlyings or in instruments related to the underlyings, and may publish research or express opinions, that in each case are inconsistent with an investment linked to the underlyings. These and other activities of our affiliates may affect the closing values of the underlyings in a way that negatively affects the value of and your return on the securities.

§

The closing value of an underlying may be adversely affected by our or our affiliates' hedging and other trading activities. We expect to hedge our obligations under the securities through CGMI or other of our affiliates, who may take positions in the underlyings or in financial instruments related to the underlyings and may adjust such positions during the term of the securities. Our affiliates also take positions in the underlyings or in financial instruments related to the underlyings on a regular basis (taking long or short positions or both), for their accounts, for other accounts under their management or to facilitate transactions on behalf of customers. These activities could affect the closing values of the underlyings in a way that negatively affects the value of and your return on the securities. They could also result in substantial returns for us or our affiliates while the value of the securities declines.

§

We and our affiliates may have economic interests that are adverse to yours as a result of our affiliates' business activities. Our affiliates engage in business activities with a wide range of companies. These activities include extending loans, making and facilitating investments, underwriting securities offerings and providing advisory services. These activities could involve or affect the underlyings in a way that negatively affects the value of and your return on the securities. They could also result in substantial returns for us or our affiliates while the value of the securities declines. In addition, in the course of this business, we or our affiliates may acquire non-public information, which will not be disclosed to you.

§

The calculation agent, which is an affiliate of ours, will make important determinations with respect to the securities. If certain events occur during the term of the securities, such as market disruption events and other events with respect to an underlying, CGMI, as calculation agent, will be required to make discretionary judgments that could significantly affect your return on the securities. In making these judgments, the calculation agent's interests as an affiliate of ours could be adverse to your interests as a holder of the securities. See "Risk Factors Relating to the Securities-Risk Factors Relating to All Securities-The calculation agent, which is an affiliate of ours, will make important determinations with respect to the securities" in the accompanying product supplement.

§

Even if an underlying pays a dividend that it identifies as special or extraordinary, no adjustment will be required under the securities for that dividend unless it meets the criteria specified in the accompanying product supplement. In general, an adjustment will not be made under the terms of the securities for any cash dividend paid by an underlying unless the amount of the dividend per share, together with any other dividends paid in the same quarter, exceeds the dividend paid per share in the most recent quarter by an amount equal to at least 10% of the closing value of that underlying on the date of declaration of the dividend. Any dividend will reduce the closing value of the underlying by the amount of the dividend per share. If an underlying pays any dividend for which an adjustment is not made under the terms of the securities, holders of the securities will be adversely affected. See "Description of the Securities-Certain Additional Terms for Securities Linked to an Underlying Company or an Underlying ETF-Dilution and Reorganization Adjustments-Certain Extraordinary Cash Dividends" in the accompanying product supplement.

§

The securities will not be adjusted for all events that may have a dilutive effect on or otherwise adversely affect the closing value of an underlying. For example, we will not make any adjustment for ordinary dividends or extraordinary dividends that do not meet the criteria described above, partial tender offers or additional underlying share issuances. Moreover, the adjustments we do make may not fully offset the dilutive or adverse effect of the particular event. Investors in the securities may be adversely affected by such an event in a circumstance in which a direct holder of the underlying shares of an underlying would not.

§

The securities may become linked to an underlying other than an original underlying upon the occurrence of a reorganization event or upon the delisting of the underlying shares of that original underlying. For example, if an underlying enters into a merger agreement that provides for holders of its underlying shares to receive shares of another entity and such shares are marketable securities, the closing value of that underlying following consummation of the merger will be based on the value of such other shares. Additionally, if the underlying shares of an underlying are delisted, the calculation agent may select a successor underlying. See "Description of the Securities-Certain Additional Terms for Securities Linked to an Underlying Company or an Underlying ETF" in the accompanying product supplement.

§

Changes that affect the underlyings may affect the value of your securities. The sponsors of the underlyings may at any time make methodological changes or other changes in the manner in which they operate that could affect the values of the underlyings. We are not affiliated with any such underlying sponsor and, accordingly, we have no control over any changes any such sponsor may make. Such changes could adversely affect the performance of the underlyings and the value of and your return on the securities.

§

The U.S. federal tax consequences of an investment in the securities are unclear. There is no direct legal authority regarding the proper U.S. federal tax treatment of the securities, and we do not plan to request a ruling from the Internal Revenue Service (the "IRS"). Consequently, significant aspects of the tax treatment of the securities are uncertain, and the IRS or a court might not agree with the treatment of the securities as prepaid forward contracts. If the IRS were successful in asserting an alternative treatment of the securities, the tax consequences of the ownership and disposition of the securities might be materially and adversely affected. For example, as discussed below, there is a substantial risk that the IRS could seek to treat the securities as debt instruments. Even if the treatment of the securities as prepaid forward contracts is respected, a security may be treated as a "constructive ownership transaction," with potentially adverse consequences described below under "United States Federal Tax Considerations." Moreover, future legislation, Treasury regulations or IRS guidance could adversely affect the U.S. federal tax treatment of the securities, possibly retroactively.

If you are a non-U.S. investor, you should review the discussion of withholding tax issues in "United States Federal Tax Considerations-Non-U.S. Holders" below.

You should read carefully the discussion under "United States Federal Tax Considerations" and "Risk Factors Relating to the Securities" in the accompanying product supplement and "United States Federal Tax Considerations" in this pricing supplement. You should also consult your tax adviser regarding the U.S. federal tax consequences of an investment in the securities, as well as tax consequences arising under the laws of any state, local or non-U.S. taxing jurisdiction.

Hypothetical Historical Information About the Basket

Because the basket exists solely for purposes of these securities, historical information on the performance of the basket does not exist for dates prior to the pricing date for these securities. The graph below sets forth the hypothetical historical daily values of the basket for the period from January 2, 2014 to November 4, 2024, assuming that the basket was created on January 2, 2014 with the same underlyings and corresponding weights in the basket and with a value of 100 on that date. The hypothetical performance of the basket is based on the actual closing values of the underlyings on the applicable dates. We obtained these closing values from Bloomberg L.P., without independent verification. Any historical trend in the value of the basket during the period shown below is not an indication of the performance of the basket during the term of the securities.

Hypothetical Historical Basket Performance January 2, 2014 to November 4, 2024

Information About the iShares^® Silver Trust

The iShares^® Silver Trust is an exchange-traded fund that seeks to provide investment results that correspond generally to the performance of the price of silver (an "underlying commodity"), less the iShares^® Silver Trust's expenses. The assets of the iShares^® Silver Trust consist primarily of silver held by a custodian on behalf of the iShares^® Silver Trust. The iShares^® Silver Trust issues shares in exchange for deposits of silver and distributes silver in connection with the redemption of shares. The shares of the iShares^® Silver Trust are designed for investors who want a cost-effective and convenient way to invest in silver. The shares of the iShares^® Silver Trust represent units of fractional undivided beneficial interest in and ownership of the iShares^® Silver Trust. The iShares^® Silver Trust is a passive investment vehicle and the trustee of the iShares^® Silver Trust does not actively manage the silver held by the iShares^® Silver Trust. The trustee of the iShares^® Silver Trust sells silver held by the iShares^® Silver Trust to pay the iShares^® Silver Trust's expenses on an as-needed basis irrespective of then-current silver prices. Currently, the iShares^® Silver Trust's only recurring fixed expense is iShares Delaware Trust Sponsor LLC's fee which accrues daily at an annual rate equal to 0.50% of the daily net asset value of the iShares^® Silver Trust, in exchange for iShares Delaware Trust Sponsor LLC assuming the responsibility to pay all ordinary fees and expenses of the iShares^® Silver Trust.

Information provided to or filed with the SEC by the iShares^® Silver Trust pursuant to the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, can be located by reference to SEC file numbers 333-237679 and 001-32863, respectively, through the SEC's website at http://www.sec.gov. The underlying shares of the iShares^® Silver Trust trade on the NYSE Arca under the ticker symbol "SLV."

We have derived all information regarding the iShares^® Silver Trust from publicly available information and have not independently verified any information regarding the iShares^® Silver Trust. This pricing supplement relates only to the securities and not to the iShares^® Silver Trust. We make no representation as to the performance of the iShares^® Silver Trust over the term of the securities.

The securities represent obligations of Citigroup Global Markets Holdings Inc. (guaranteed by Citigroup Inc.) only. The sponsor of the iShares^® Silver Trust is not involved in any way in this offering and has no obligation relating to the securities or to holders of the securities.

Historical Information

The closing value of the iShares^® Silver Trust on November 4, 2024 was $29.63.

The graph below shows the closing value of the iShares^® Silver Trust for each day such value was available from January 2, 2014 to November 4, 2024. We obtained the closing values from Bloomberg L.P., without independent verification. You should not take historical closing values as an indication of future performance.

iShares® Silver Trust - Historical Closing Values January 2, 2014 to November 4, 2024

Information About the SPDR^® Gold Trust

The SPDR® Gold Trust is an exchange-traded fund that seeks to provide investment results that correspond generally to the performance of the price of gold bullion (an "underlying commodity"), less the SPDR® Gold Trust's expenses. The SPDR® Gold Trust holds gold bars and from time to time, issues shares in exchange for deposits of gold and distributes gold in connection with the redemption of shares. The shares of the SPDR® Gold Trust are designed for investors who want a cost-effective and convenient way to invest in gold. The shares of the SPDR® Gold Trust represent units of fractional undivided beneficial interest in and ownership of the SPDR® Gold Trust. The SPDR® Gold Trust is a passive investment vehicle and the trustee of the SPDR® Gold Trust does not actively manage the gold held by the SPDR® Gold Trust. The trustee of the SPDR® Gold Trust sells gold held by the SPDR® Gold Trust to pay the SPDR® Gold Trust's expenses on an as-needed basis irrespective of then-current gold prices. Currently, the SPDR® Gold Trust's only recurring fixed expense is World Gold's fee which accrues daily at an annual rate equal to 0.40% of the daily net asset value of the SPDR® Gold Trust, in exchange for World Gold assuming the responsibility to pay all ordinary fees and expenses of the SPDR® Gold Trust.

Information provided to or filed with the SEC by the SPDR^® Gold Trust pursuant to the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, can be located by reference to SEC file numbers 333-233191 and 001-32356, respectively, through the SEC's website at http://www.sec.gov. The underlying shares of the SPDR^® Gold Trust trade on the NYSE Arca under the ticker symbol "GLD."

Please refer to the section "Fund Descriptions- The SPDR^® Gold Trust" in the accompanying underlying supplement for additional information.

We have derived all information regarding the SPDR^® Gold Trust from publicly available information and have not independently verified any information regarding the SPDR^® Gold Trust. This pricing supplement relates only to the securities and not to the SPDR^® Gold Trust. We make no representation as to the performance of the SPDR^® Gold Trust over the term of the securities.

The securities represent obligations of Citigroup Global Markets Holdings Inc. (guaranteed by Citigroup Inc.) only. The sponsor of the SPDR^® Gold Trust is not involved in any way in this offering and has no obligation relating to the securities or to holders of the securities.

Historical Information

The closing value of the SPDR^® Gold Trust on November 4, 2024 was $252.83.

The graph below shows the closing value of the SPDR^® Gold Trust for each day such value was available from January 2, 2014 to November 4, 2024. We obtained the closing values from Bloomberg L.P., without independent verification. You should not take historical closing values as an indication of future performance.

SPDR® Gold Trust - Historical Closing Values January 2, 2014 to November 4, 2024

United States Federal Tax Considerations

You should read carefully the discussion under "United States Federal Tax Considerations" and "Risk Factors Relating to the Securities" in the accompanying product supplement and "Summary Risk Factors" in this pricing supplement.

Due to the lack of any controlling legal authority, there is substantial uncertainty regarding the U.S. federal income tax consequences of an investment in the securities. In the opinion of our counsel, Davis Polk & Wardwell LLP, it is reasonable under current law to treat a security as a prepaid forward contract for U.S. federal income tax purposes. However, our counsel has advised us that it is unable to conclude affirmatively that this treatment is more likely than not to be upheld, and that alternative treatments are possible. Moreover, our counsel's opinion is based on market conditions as of the date of this preliminary pricing supplement and is subject to confirmation on the pricing date.

Assuming this treatment of the securities is respected and subject to the discussion in "United States Federal Tax Considerations" in the accompanying product supplement, the following U.S. federal income tax consequences should result under current law:

·	You should not recognize taxable income over the term of the securities prior to maturity, other than pursuant to a sale or exchange.

·

Upon a sale or exchange of a security (including retirement at maturity), you should recognize gain or loss equal to the difference between the amount realized and your tax basis in the security. Subject to the discussion below concerning the potential application of the "constructive ownership" rules under Section 1260 of the Code, any gain or loss recognized upon a sale, exchange or retirement of a security should be long-term capital gain or loss if you held the security for more than one year.

Even if the treatment of the securities as prepaid forward contracts is respected, your purchase of a security may be treated as entry into a "constructive ownership transaction," within the meaning of Section 1260 of the Code. In that case, all or a portion of any long-term capital gain you would otherwise recognize in respect of your securities would be recharacterized as ordinary income to the extent such gain exceeded the "net underlying long-term capital gain." Any long-term capital gain recharacterized as ordinary income under Section 1260 would be treated as accruing at a constant rate over the period you held your securities, and you would be subject to an interest charge in respect of the deemed tax liability on the income treated as accruing in prior tax years. In addition, long-term capital gain that you would otherwise recognize in respect of your securities up to the amount of the "net underlying long-term capital gain" could, if you are an individual or other non-corporate investor, be subject to tax at the higher rates applicable to "collectibles" instead of the general rates that apply to long-term capital gain. Due to the lack of governing authority under Section 1260, our counsel is not able to opine as to whether or how Section 1260 applies to the securities. You should read the section entitled "United States Federal Tax Considerations-Tax Consequences to U.S. Holders-Securities Treated as Prepaid Forward Contracts-Possible Application of Section 1260 of the Code" in the accompanying product supplement for additional information and consult your tax adviser regarding the potential application of the "constructive ownership" rule.

We do not plan to request a ruling from the IRS regarding the treatment of the securities. An alternative characterization of the securities could materially and adversely affect the tax consequences of ownership and disposition of the securities, including the timing and character of income recognized. In particular, due to the terms of the securities, there is a substantial risk that the IRS could seek to treat the securities as debt instruments for U.S. federal income tax purposes. In that event, you would be required to accrue into income original issue discount on the securities every year at a "comparable yield" determined as of the time of issuance and recognize all income and gain in respect of the securities as ordinary income. In addition, the U.S. Treasury Department and the IRS have requested comments on various issues regarding the U.S. federal income tax treatment of "prepaid forward contracts" and similar financial instruments and have indicated that such transactions may be the subject of future regulations or other guidance. Furthermore, members of Congress have proposed legislative changes to the tax treatment of derivative contracts. Any legislation, Treasury regulations or other guidance promulgated after consideration of these issues could materially and adversely affect the tax consequences of an investment in the securities, possibly with retroactive effect. You should consult your tax adviser regarding possible alternative tax treatments of the securities and potential changes in applicable law.

Non-U.S. Holders. Subject to the discussions below and in "United States Federal Tax Considerations" in the accompanying product supplement, if you are a Non-U.S. Holder (as defined in the accompanying product supplement) of the securities, you generally should not be subject to U.S. federal withholding or income tax in respect of any amount paid to you with respect to the securities, provided that (i) income in respect of the securities is not effectively connected with your conduct of a trade or business in the United States, and (ii) you comply with the applicable certification requirements.

As discussed under "United States Federal Tax Considerations-Tax Consequences to Non-U.S. Holders" in the accompanying product supplement, Section 871(m) of the Code and Treasury regulations promulgated thereunder ("Section 871(m)") generally impose a 30% withholding tax on dividend equivalents paid or deemed paid to Non-U.S. Holders with respect to certain financial instruments linked to U.S. equities ("U.S. Underlying Equities") or indices that include U.S. Underlying Equities. Section 871(m) generally applies to instruments that substantially replicate the economic performance of one or more U.S. Underlying Equities, as determined based on tests set forth in the applicable Treasury regulations. However, the regulations, as modified by an IRS notice, exempt financial instruments issued prior to January 1, 2027 that do not have a "delta" of one. Based on the terms of the securities and representations provided by us as of the date of this preliminary pricing supplement, our counsel is of the opinion that the securities should not be treated as transactions that have a "delta" of one within the meaning of the regulations with respect to any U.S. Underlying Equity and, therefore, should not be subject to withholding tax under Section 871(m). However, the final determination regarding the treatment of the securities under Section 871(m) will be made as of the pricing date for the securities, and it is possible that the securities will be subject to withholding tax under Section 871(m) based on the circumstances as of that date.

A determination that the securities are not subject to Section 871(m) is not binding on the IRS, and the IRS may disagree with this treatment. Moreover, Section 871(m) is complex and its application may depend on your particular circumstances, including your other transactions. You should consult your tax adviser regarding the potential application of Section 871(m) to the securities.

If withholding tax applies to the securities, we will not be required to pay any additional amounts with respect to amounts withheld.

You should read the section entitled "United States Federal Tax Considerations" in the accompanying product supplement. The preceding discussion, when read in combination with that section, constitutes the full opinion of Davis Polk & Wardwell LLP regarding the material U.S. federal tax consequences of owning and disposing of the securities.

You should also consult your tax adviser regarding all aspects of the U.S. federal income and estate tax consequences of an investment in the securities and any tax consequences arising under the laws of any state, local or non-U.S. taxing jurisdiction.

Supplemental Plan of Distribution

CGMI, an affiliate of Citigroup Global Markets Holdings Inc. and the underwriter of the sale of the securities, is acting as principal and will receive an underwriting fee of up to $6.00 for each security sold in this offering. The actual underwriting fee will be equal to the selling concession provided to selected dealers, as described in this paragraph. From this underwriting fee, CGMI will pay selected dealers not affiliated with CGMI a variable selling concession of up to $6.00 for each security they sell.

See "Plan of Distribution; Conflicts of Interest" in the accompanying product supplement and "Plan of Distribution" in each of the accompanying prospectus supplement and prospectus for additional information.

Valuation of the Securities

CGMI calculated the estimated value of the securities set forth on the cover page of this pricing supplement based on proprietary pricing models. CGMI's proprietary pricing models generated an estimated value for the securities by estimating the value of a hypothetical package of financial instruments that would replicate the payout on the securities, which consists of a fixed-income bond (the "bond component") and one or more derivative instruments underlying the economic terms of the securities (the "derivative component"). CGMI calculated the estimated value of the bond component using a discount rate based on our internal funding rate. CGMI calculated the estimated value of the derivative component based on a proprietary derivative-pricing model, which generated a theoretical price for the instruments that constitute the derivative component based on various inputs, including the factors described under "Summary Risk Factors-The value of the securities prior to maturity will fluctuate based on many unpredictable factors" in this pricing supplement, but not including our or Citigroup Inc.'s creditworthiness. These inputs may be market-observable or may be based on assumptions made by CGMI in its discretionary judgment.

The estimated value of the securities is a function of the terms of the securities and the inputs to CGMI's proprietary pricing models. As of the date of this preliminary pricing supplement, it is uncertain what the estimated value of the securities will be on the pricing date because certain terms of the securities have not yet been fixed and because it is uncertain what the values of the inputs to CGMI's proprietary pricing models will be on the pricing date.

For a period of approximately four months following issuance of the securities, the price, if any, at which CGMI would be willing to buy the securities from investors, and the value that will be indicated for the securities on any brokerage account statements prepared by CGMI or its affiliates (which value CGMI may also publish through one or more financial information vendors), will reflect a temporary upward adjustment from the price or value that would otherwise be determined. This temporary upward adjustment represents a portion of the hedging profit expected to be realized by CGMI or its affiliates over the term of the securities. The amount of this temporary upward adjustment will decline to zero on a straight-line basis over the four-month temporary adjustment period. However, CGMI is not obligated to buy the securities from investors at any time. See "Summary Risk Factors-The securities will not be listed on any securities exchange and you may not be able to sell them prior to maturity."

Contact

Clients may contact their local brokerage representative. Third-party distributors may contact Citi Structured Investment Sales at (212) 723-7005.

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