PRICING SUPPLEMENT File No. 333-122639 - ------------------- Rule 424(b)(3) (To Prospectus Supplement and Prospectus dated February 25, 2005) Pricing Supplement Number: 2466 Merrill Lynch & Co., Inc. Medium-Term Notes, Series C Due Nine Months or More from Date of Issue Floating Rate Notes Principal Amount: $555,000,000 Original Issue DaAugust 22, 2005 CUSIP Number: 59018YVY4 Stated Maturity DAugust 22, 2007 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: -------------------- [_] LIBOR [_] Commercial Paper Rate [_] CMT Rate [_] Eleventh District Cost of Funds Rate [_] Prime Rate [_] CD Rate [x] Federal Funds Open Rate [_] Other (see attached) [ ] Treasury Rate Designated CMT Page: Designated LIBOR Page: CMT Telerate Page: LIBOR Telerate Page: CMT Reuters Page: LIBOR Reuters Page: Index Maturity: One Day Minimum Interest Rate: Not Applicable Spread: Plus 0.115% Maximum Interest Rate: Not Applicable Initial Interest Rate: Calculated as if Spread Multiplier: Not Applicable the Original Issue Date was an Interest Reset Date Interest Reset Dates: Each Business Day, commencing August 23, 2005 to but excluding the Stated Maturity Date, subject to the following Business Day convention Interest Payment Dates: Quarterly, on the 22nd of February, May, August and November commencing November 22, 2005, subject to the following Business Day convention Fed Funds Open Rate: The rate for an Interest Reset Date shall be the rate set forth on Telerate Page 5 for that day underneath the caption "FEDERAL FUNDS" in the row titled "OPEN". If the rate is not available for an Interest Reset Date, the rate for that Interest Reset Date shall be determined in accordance with the procedures set forth in the prospectus supplement for the Notes relating to determination of the Federal Funds Rate. 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 ("MLPF&S"), HSBC Securities (USA) Inc. and ABN AMRO Incorporated (the "Underwriters"), are acting as principals in this transaction. MLPF&S is acting as the Lead Underwriter. Pursuant to an agreement, dated August 17, 2005 (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: