Jefferies Financial Group Inc美股招股说明书(2026-04-02版)

PRELIMINARY PRICING SUPPLEMENT(to Product Supplement no. 1, dated May 18, 2023,Prospectus Supplement dated May 12, 2023and Prospectus dated May 12, 2023) $Jefferies Jefferies Financial Group Inc.Senior Capped Notes due April 30, 2032Linked to the Dow Jones Industrial Average®The Senior Capped Notes due April 30, 2032 Linked to the Dow Jones Industrial Average®(the “Notes”) are senior unsecured obligations of Jefferies Financial Group Inc. The Notes will pay no interest, provide for a Minimum Payment at Maturity of 100% of the Stated Principal Amount and have the terms described in the accompanying productsupplement, prospectus supplement and prospectus, as supplemented or modified by this pricing supplement. At maturity, if the Underlying hasappreciatedin value,investors will receive the Stated Principal Amount of their investment plus the upside performance of the Underlying, subject to the Maximum Payment at Maturity. If theUnderlying hasdepreciatedin value, investors will receive the Minimum Payment at Maturity. Investors may not earn a return on their investment in the Notes. The Notes areissued as part of our Series A Global Medium-Term Notes program.All payments are subject to our credit risk. If we default on our obligations, you could lose some or a significant portion of your investment. These Notes are not secured obligations and you will not have any security interest in, or otherwise have any access to, any Underlying or the securities represented by anyUnderlying. SUMMARY OF TERMSIssuer:Title of the Notes:Aggregate Principal Amount:Issue Price:Stated Principal Amount:Pricing Date:Original Issue Date:Valuation Date:Maturity Date:Underlying:Payment at Maturity: April 30, 2032, which may be postponed if the Valuation Date is postponed as described in the accompanying product supplement.The Dow Jones Industrial Average®(the “INDU”). Please see “The Underlying” below. If the Final Value is greater than the Initial Value, you will receive for each Note that you hold a Payment at Maturity equal to: StatedPrincipal Amount × (1+ Participation Rate × Underlying Return), subject to the Maximum Payment at Maturity.If the Final Value is less than or equal to the Initial Value, you will receive for each Note that you hold a Payment at Maturity that is equal to the Minimum Payment at Maturity.In this scenario you will not receive a positive return on your investment in the Notes 100% Participation Rate:Underlying Return: Initial Value:Final Value:Minimum Payment at Maturity:$1,000.00 per Note (100.00% of the Stated Principal Amount)Maximum Payment at Maturity:At least $1,600.00 per Note (160.00% of the Stated Principal Amount). The actual Maximum Payment at Maturity will be determined on the Redemption:Specified Currency:CUSIP/ISIN:Book-entry or Certificated Note:Book-entryBusiness Day:Agent:Calculation Agent:Trustee:Estimated value on the PricingDate:Use of Proceeds:Listing:Conflict of Interest: New YorkJefferies LLC, a wholly-owned subsidiary of Jefferies Financial Group Inc. See “Supplemental Plan of Distribution.”Jefferies Financial Services, Inc., a wholly owned subsidiary of Jefferies Financial Group Inc.The Bank of New York MellonApproximately $938.10 per Note, or within $30.00 of that estimate. Please see “The Notes” below. General corporate purposesNone Jefferies LLC, the broker-dealer subsidiary of Jefferies Financial Group Inc., is a member of FINRA and will participate in the distribution ofthe notes being offered hereby. Accordingly, the offering is subject to the provisions of FINRA Rule 5121 relating to conflicts of interest andwill be conducted in accordance with the requirements of Rule 5121. See “Conflict of Interest.”The Notes will be our senior unsecured obligations and will rank equally with our other senior unsecured indebtedness. Investing in the Notes involves risks that are described in the “Risk Factors” section beginning on page PS-5 of this pricing supplement. 1We or Jefferies LLC will pay various discounts and commissions to dealers of up to 3.75% per Note depending on market conditions. See “Supplemental Plan ofDistribution” on page PS-17 of this document Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this pricing supplement or theaccompanying product supplement, prospectus or prospectus supplement is truthful or complete. Any representation to the contrary is a criminal offense.As used in this pricing supplement, “we,” “us” and “our” refer to Jefferies Financial Group Inc., unless the context requires otherwise.We will deliver the Notes in book-entry form only through The Depository Trust Company on or about April 30, 2026 against payment in immediately available funds.Jefferies Pricing supplement dated ,2026.You should read this pricing supplement together with the related product supplement, prospectus and prospectus supplement, each of which can be accessed