PRICING SUPPLEMENT (To Prospectus Supplement and Prospectus dated February 25, 2005) Pricing Supplement Number: 2509 Merrill Lynch & Co., Inc. Medium-Term Notes, Series C Due Nine Months or More from Date of Issue Floating Rate Notes
Principal Amount: $1,250,000,000 Original Issue Date: February 14, 2006 CUSIP Number: 59018YWT4 Stated Maturity Date: January 30, 2009 Issue Price: 100% Interest Calculation: Day Count Convention: - ----------------- ---------------------- --- --- | x | Regular Floating Rate Note | x | Actual/360 --- --- | | Inverse Floating Rate Note | | 30/360 --- (Fixed Interest Rate): --- | | Actual/Actual --- Interest Rate Basis: - ------------------- --- --- | x | LIBOR | | Commercial Paper Rate --- --- | | CMT Rate | | Eleventh District Cost of Funds Rate --- --- | | Prime Rate | | CD Rate --- --- | | Federal Funds Rate | | Other (see attached) --- --- | | Treasury Rate --- Designated CMT Page: Designated LIBOR Page: CMT Moneyline Telerate Page: LIBOR Moneyline Telerate Page: 3750 LIBOR Reuters Page: Index Maturity: Three Months, except that LIBOR with Minimum Interest Rate: Not Applicable respect to the Initial Interest Period will be calculated on an interpolated basis Spread: + 0.09% Maximum Interest Rate: Not Applicable Initial Interest Rate: Calculated as if the Original Issue Spread Multiplier: Not Applicable Date was an Interest Reset Date Interest Reset Dates: Quarterly, on the 30th of January, April, July and October, commencing on April 30, 2006, subject to modified following Business Day convention. Interest Payment Dates: Quarterly, on the 30th of January, April, July and October, commencing on April 30, 2006, subject to modified following Business Day convention. Repayment at the Option of the Holder: The Notes cannot be repaid prior to the Stated Maturity Date. Redemption at the Option of the Company: The Notes cannot be redeemed prior to the Stated Maturity Date. Form: The Notes are being issued in fully registered book-entry form. Trustee: JPMorgan Chase Bank, N.A. Underwriters: Merrill Lynch, Pierce, Fenner & Smith Incorporated ("MLPFS"), Morgan Keegan & Company, Inc. and RBC Capital Markets Corporation (the "Underwriters"), are acting as principals in this transaction. MLPF&S is acting as the Lead Underwriter. Pursuant to an agreement, dated February 9th, 2006 (the "Agreement"), between Merrill Lynch & Co., Inc. (the "Company") and the Underwriters, the Company has agreed to sell to each of the Underwriters and each of the Underwriters has severally and not jointly agreed to purchase the principal amount of Notes set forth opposite its name below: Underwriters Principal Amount of the Notes ------------ ----------------------------- Merrill Lynch, Pierce, Fenner & Smith $1,225,000,000 Incorporated Morgan Keegan & Company, Inc. $12,500,000 RBC Capital Markets Corporation $12,500,000 --------------- Total $1,250,000,000 Pursuant to the Agreement, the obligations of the Underwriters are subject to certain conditions and the Underwriters are committed to take and pay for all of the Notes, if any are taken. The Underwriters have advised the Company that they propose initially to offer all or part of the Notes directly to the public at the Issue Price listed above. After the initial public offering, the Issue Price may be changed. The Company has agreed to indemnify the Underwriters against certain liabilities, including liabilities under the Securities Act of 1933, as amended. Underwriting Discount: 0.25% Dated: February 9, 2006