QUANTUMONLINE.COM SECURITY DESCRIPTION:  Merrill Lynch & Co. Inc., Accelerated Return Bear Market Notes linked to the S&P 500 Index, due 7/10/2008, and issued at $10 per unit. These notes are designed for investors who believe that the S&P 500 Index will decline over the period of the notes. The notes will receive no payments before maturity, are not redeemable prior to maturity, and make no guarantee of the return of principal at maturity. At maturity the holder will receive a payment based on the percentage change in the S&P 500 Index, starting value 1,495.92 as of 5/2/2007. If the Index has decreased, the maturity payment will be based on triple the percentage decrease in the index, not to exceed $12.40 per unit. If the index has increased, the holder will receive a maturity payment that is reduced from the $10 offering price based on the percentage of increase in the Index. If the Index has increased by 10% or less from the starting value, the holder will receive $10.00 per unit or if the index has increased by more than 10% from the starting value, the holder's original investment will be reduced based upon the percentage increase of the Index in excess of 10% from the starting value. As a result, the maturity payment may be less, and possibly significantly less, than the $10 offering price. See page PS-4 of the prospectus for further details on the calculation of the maturity payment and page PS-5 for hypothetical examples of the maturity payment. The notes are senior unsecured debt securities issued by Merrill Lynch & Co. Inc. and rank equally with all of their other unsecured and unsubordinated debt. See the IPO prospectus for further information on the Accelerated Return Bear Market Notes and their maturity payment by clicking on the ‘Link to IPO Prospectus’ provided below.

Company's Online Information Links

HOME PAGE:     http://www.ml.com/ (This parent company URL is for reference only and does not have specific information on the security.)

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Company's Email Address Links

Email Address	investor_relations@ml.com
Email Contact Form on Website	Go to Email Form

Address and Phone Numbers

Address:   4 World Financial Center, North Tower, New York, NY 10080
Main Phone Number	212-449-1000
Fax Number	212-236-4384
Investor Relations	866-607-1234
Toll Free Phone Number	800-637-7455

CEO - David H. Komansky

CFO - Thomas H. Patrick