Exhibit 15
May 5, 2006
Merrill Lynch & Co., Inc.
4 World Financial Center
New York, NY 10080
We have made a review, in accordance with the standards of the Public Company Accounting Oversight Board (United States), of the unaudited interim condensed consolidated financial information of Merrill Lynch & Co., Inc. and subsidiaries (“Merrill Lynch”) as of March 31, 2006 and for the three-month periods ended March 31, 2006 and April 1, 2005, as indicated in our report dated May 5, 2006 (which report included an explanatory paragraph regarding the change in accounting method in 2006 for share-based payments to conform to Statement of Financial Accounting Standards No. 123 (revised 2004), Share-Based Payment); because we did not perform an audit, we expressed no opinion on that information.
We are aware that our report referred to above, which is included in your Quarterly Report on Form 10-Q for the quarter ended March 31, 2006, is incorporated by reference in the following Registration Statements, as amended:
Filed on Form S-8
  Registration Statement No. 33-41942 (1986 Employee Stock Purchase Plan)
 
  Registration Statement No. 33-17908 (Incentive Equity Purchase Plan)
 
  Registration Statement No. 33-33336 (Long-Term Incentive Compensation Plan)
 
  Registration Statement No. 33-51831 (Long-Term Incentive Compensation Plan)
 
  Registration Statement No. 33-51829 (401(k) Savings and Investment Plan)
 
  Registration Statement No. 33-54154 (Non-Employee Directors’ Equity Plan)
 
  Registration Statement No. 33-54572 (401(k) Savings and Investment Plan (Puerto Rico))
 
  Registration Statement No. 33-56427 (Amended and Restated 1994 Deferred Compensation Plan for a Select Group of Eligible Employees)
 
  Registration Statement No. 33-55155 (1995 Deferred Compensation Plan for a Select Group of Eligible Employees)
 
  Registration Statement No. 33-60989 (1996 Deferred Compensation Plan for a Select Group of Eligible Employees)
 
  Registration Statement No. 333-00863 (401(k) Savings & Investment Plan)
 
  Registration Statement No. 333-09779 (1997 Deferred Compensation Plan for a Select Group of Eligible Employees)
 
  Registration Statement No. 333-13367 (Restricted Stock Plan for Former Employees of Hotchkis and Wiley)
 
  Registration Statement No. 333-15009 (1997 KECALP Deferred Compensation Plan for a Select Group of Eligible Employees)
 
  Registration Statement No. 333-17099 (Deferred Unit and Stock Unit Plan for Non-Employee Directors)

 

  Registration Statement No. 333-18915 (Long-Term Incentive Compensation Plan for Managers and Producers)
 
  Registration Statement No. 333-32209 (1998 Deferred Compensation Plan for a Select Group of Eligible Employees)
 
  Registration Statement No. 333-33125 (Employee Stock Purchase Plan for Employees of Merrill Lynch Partnerships)
 
  Registration Statement No. 333-41425 (401(k) Savings & Investment Plan)
 
  Registration Statement No. 333-56291 (Long-Term Incentive Compensation Plan for Managers and Producers)
 
  Registration Statement No. 333-60211 (1999 Deferred Compensation Plan for a Select Group of Eligible Employees)
 
  Registration Statement No. 333-62311 (Replacement Options; Midland Walwyn Inc.)
 
  Registration Statement No. 333-85421 (401(k) Savings and Investment Plan)
 
  Registration Statement No. 333-85423 (2000 Deferred Compensation Plan for a Select Group of Eligible Employees)
 
  Registration Statement No. 333-92663 (Long-Term Incentive Compensation Plan for Managers and Producers)
 
  Registration Statement No. 333-44912 (2001 Deferred Compensation Plan for a Select Group of Eligible Employees)
 
  Registration Statement No. 333-64676 (1986 Employee Stock Purchase Plan)
 
  Registration Statement No. 333-64674 (Long-Term Incentive Compensation Plan for Managers and Producers)
 
  Registration Statement No. 333-68330 (2002 Deferred Compensation Plan for a Select Group of Eligible Employees)
 
  Registration Statement No. 333-99105 (2003 Deferred Compensation Plan for a Select Group of Eligible Employees)
 
  Registration Statement No. 333-108296 (2004 Deferred Compensation Plan for a Select Group of Eligible Employees)
 
  Registration Statement No. 333-109236 (Employee Stock Compensation Plan)
 
  Registration Statement No. 333-118615 (2005 Deferred Compensation Plan for a Select Group of Eligible Employees)
 
  Registration Statement No. 333-125109 (2006 Deferred Compensation Plan for a Select Group of Eligible Employees)
 
  Registration Statement No. 333-125181 (Deferred Stock Unit Plan for Non-Employees)

 

Filed on Form S-3:
  Debt Securities, Warrants, Common Stock, Preferred Securities, and/or Depository Shares:
 
  Registration Statement No. 33-54218
 
  Registration Statement No. 2-78338
 
  Registration Statement No. 2-89519
 
  Registration Statement No. 2-83477
 
  Registration Statement No. 33-03602
 
  Registration Statement No. 33-17965
 
  Registration Statement No. 33-27512
 
  Registration Statement No. 33-33335
 
  Registration Statement No. 33-35456
 
  Registration Statement No. 33-42041
 
  Registration Statement No. 33-45327
 
  Registration Statement No. 33-45777
 
  Registration Statement No. 33-49947
 
  Registration Statement No. 33-51489
 
  Registration Statement No. 33-52647
 
  Registration Statement No. 33-55363
 
  Registration Statement No. 33-60413
 
  Registration Statement No. 33-61559
 
  Registration Statement No. 33-65135
 
  Registration Statement No. 333-13649
 
  Registration Statement No. 333-16603
 
  Registration Statement No. 333-20137
 
  Registration Statement No. 333-25255
 
  Registration Statement No. 333-28537
 
  Registration Statement No. 333-42859
 
  Registration Statement No. 333-44173
 
  Registration Statement No. 333-59997
 
  Registration Statement No. 333-68747
 
  Registration Statement No. 333-38792

 

  Registration Statement No. 333-52822
 
  Registration Statement No. 333-83374
 
  Registration Statement No. 333-97937
 
  Registration Statement No. 333-105098
 
  Registration Statement No. 333-109802
 
  Registration Statement No. 333-122639
 
  Registration Statement No. 333-132911
Medium Term Notes:
  Registration Statement No. 2-96315
 
  Registration Statement No. 33-03079
 
  Registration Statement No. 33-05125
 
  Registration Statement No. 33-09910
 
  Registration Statement No. 33-16165
 
  Registration Statement No. 33-19820
 
  Registration Statement No. 33-23605
 
  Registration Statement No. 33-27549
 
  Registration Statement No. 33-38879
Other Securities:
  Registration Statement No. 333-02275 (Long-Term Incentive Compensation Plan)
 
  Registration Statement No. 333-24889 (Long-Term Incentive Compensation Plan, and Long-Term Incentive Compensation Plan for Managers and Producers)
 
  Registration Statement No. 333-36651 (Hotchkis and Wiley Resale)
 
  Registration Statement No. 333-59263 (Exchangeable Shares of Merrill Lynch & Co., Canada Ltd. re: Midland Walwyn Inc.)
 
  Registration Statement No. 333-67903 (Howard Johnson & Company Resale)
 
  Registration Statement No. 333-45880 (Herzog, Heine, Geduld, Inc. Resale)
We are also aware that the aforementioned report, pursuant to Rule 436(c) under the Securities Act of 1933, is not considered a part of a Registration Statement prepared or certified by an accountant or a report prepared or certified by an accountant within the meaning of Sections 7 and 11 of that Act.
/s/ Deloitte & Touche LLP
New York, New York