Merrill Lynch & Co., Inc.
                                                   95 Greene Street
                                                   Jersey City, New Jersey 07302

                                                   July 30, 2003

[LOGO] MERRILL LYNCH

OFICS Filer Support
SEC Operations Center
6432 General Green Way
Alexandria, Virginia 22312-2413

Attention: 1933 Act Filing Desk

Re: Registration Statement No. 333-105098

With reference to the above captioned Registration Statement and in compliance
with Rule 424(b)(3) adopted under the Securities Act of 1933, as amended, we
enclose herewith for filing, one copy, marked as required, one Prospectus and
Prospectus Supplement dated June 3, 2003 relating to Merrill Lynch & Co., Inc.
Medium-Term Notes to be used on and after this date. In addition, please
reference that this note is not listed on any exchange.

                                       Very truly yours,

                                       /s/ Mark Youngclaus

                                       Mark Youngclaus
                                       Vice President


PRICING SUPPLEMENT                                           File No. 333-105098
(To Prospectus Supplement and                                     Rule 424(b)(3)
Prospectus dated June 3, 2003)
Pricing Supplement Number: 2327

                            Merrill Lynch & Co., Inc.
                           Medium-Term Notes, Series B
                   Due Nine Months or More from Date of Issue

                               Floating Rate Notes

Principal Amount: $100,000,000     Original Issue Date: July 28, 2003

CUSIP Number: 59018YRR4            Stated Maturity Date: July 28, 2006

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 Effective Rate   [ ] Other (see attached)
    (Same Day)
[ ] Treasury Rate
    Designated CMT Page:               Designated LIBOR Page:
      CMT Telerate Page:                 LIBOR Telerate Page:
      CMT Reuters Page:                  LIBOR Reuters Page:

Index Maturity:         N/A              Minimum Interest Rate: Not Applicable

Spread:                 0.360%           Maximum Interest Rate: Not Applicable

Initial Interest Rate:  Calculated as    Spread Multiplier: Not Applicable
                        if the Original
                        Issue Date was
                        an interest Reset
                        Date

Interest Reset Dates:   Each Business Day, commencing July 29, 2003 to but
                        excluding the Stated Maturity Date, subject to the
                        following Business Day convention

Interest Payment Dates: Quarterly, on the 28th of July, October, January and
                        April commencing October 28, 2003; subject to the
                        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

Dated:                  July 23, 2003