QUANTUMONLINE.COM SECURITY DESCRIPTION:  Merrill Lynch & Co. Inc., Strategic Return Notes linked to value of the Merrill Lynch Factor Model (Bloomberg symbol: MLEIFCTR), due 11/7/2012, and issued at $10 per note. The holder will receive no payments prior to maturity unless exchanged and the notes make no guarantee of the return of principal at maturity. The Merrill Lynch Factor Model is composed of six Model Factors: the S&P 500 Total Return Index, U.S. Dollar Index, MSCI EAFE US Dollar Net Total Return Index, MSCI Emerging Markets Free US Dollar Net Total Return Index, Russell 2000 Total Return Index and one-month USD LIBOR. At the maturity date the holder will receive a cash payment of $9.90 times the difference in the Merrill Lynch Factor Model (starting value 1,607.39 as of 10/31/2007) less an annual index adjustment factor of 1.0% per year (approximately 4.88% over the term of the notes), which can result in a payment of more or less, and possibly significantly less, than the original $10 investment. The notes are exchangeable for cash at the holder’s option each November from 2008 through 2011. See page PS-3 of the IPO prospectus for information on the Model, page PS-4 for further information on the maturity payment calculation, page PS-5 for hypothetical examples of the maturity payment calculation, and page PS-15 for the explanation of the exchange feature of the notes. The strategic return notes are Series C medium-term notes which are senior unsecured debt securities issued by Merrill Lynch & Co. Inc. and will rank equally with their other unsecured and unsubordinated debt. See the IPO prospectus for further information on the Strategic Return Notes by clicking on the ‘Link to IPO Prospectus’ provided below.

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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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Email Address	investor_relations@ml.com
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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