Pricing Supplement

Filed Pursuant to Rule 424(b)(3)

Registration No. 333-132911

Subject to Completion

Preliminary Pricing Supplement dated September 28, 2007

PRICING SUPPLEMENT

(To MTN Prospectus Supplement, general Prospectus Supplement

and Prospectus dated March 31, 2006)

Pricing Supplement Number:

Merrill Lynch & Co., Inc.

Medium-Term Notes, Series C

Due Nine Months or More from Date of Issue

Original Issue Discount Notes due October 4, 2037


Principal Amount:		$50,000,000

Issue Price:		$6,255,408 (12.510816% of principal amount)

Denominations:		$1,000 and integral multiples thereof

Purchase Price to Underwriter:		12.260816% of principal amount

Underwriting Discount:		0.25%

CUSIP Number:

Interest Rate:		0.00%

Accrual Rate:		7.0500001% accretion yield, semi-annually, 30/360, compounded and paid at the earlier of the Redemption Date (as defined below) or maturity

Original Issue Date:		October 4, 2007

Stated Maturity Date:		October 4, 2037

Interest Payment Dates:		None

Repayment at the Option of the Holder:		The Notes cannot be repaid at the option of the holder prior to the Stated Maturity Date.

Redemption at the
Option of the Company:		On April 4 or October 4 of each year, commencing October 4, 2012, Merrill Lynch & Co., Inc. (the “Company”) may redeem the Notes (if elected, the “Redemption Date”) in whole, but not in part, with not less


		than five Business Days notice, prior to the Redemption Date for a redemption price specified in the Redemption Schedule shown below. If a Redemption Date falls on a day that is not a Business Day, the Notes will be redeemed on the immediately succeeding Business Day and no additional interest will accrue as a result of such delayed redemption.

Form:		The Notes will be issued in fully registered book-entry form. As described in the accompanying general prospectus supplement, upon issuance, all of the Notes will be represented by one or more fully registered global Notes. Each global Note will be deposited with, or on behalf of, The Depository Trust Company, otherwise known as DTC, or any successor to it (the “depository”), as depositary, and registered in the name of Cede & Co., DTC’s partnership nominee.

Trustee:		The Bank of New York

Underwriter:		Merrill Lynch, Pierce, Fenner & Smith Incorporated (“MLPF&S”)

Business Day:		Any day other than a Saturday or Sunday that is neither a legal holiday nor a day on which banking institutions in The City of New York are authorized or required by law, regulation or executive order to close.

Dated:		September , 2007

Redemption Schedule


Redemption Date	Redemption Price
Redemption Date	(% of principal amount)	(per $1,000 principal amount per unit of the Notes)
10/4/2012	17.690415%	$176.90415
4/4/2013	18.314003%	$183.14003
10/4/2013	18.959571%	$189.59571
4/4/2014	19.627896%	$196.27896
10/4/2014	20.319779%	$203.19779
4/4/2015	21.036052%	$210.36052
10/4/2015	21.777572%	$217.77572
4/4/2016	22.545232%	$225.45232
10/4/2016	23.339951%	$233.39951
4/4/2017	24.162685%	$241.62685
10/4/2017	25.014419%	$250.14419
4/4/2018	25.896178%	$258.96178
10/4/2018	26.809018%	$268.09018
4/4/2019	27.754036%	$277.54036
10/4/2019	28.732365%	$287.32365
4/4/2020	29.745181%	$297.45181
10/4/2020	30.793699%	$307.93699
4/4/2021	31.879177%	$318.79177