FORM 4
[ X ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public
Utility Holding Company Act of 1935 or Section 30(f) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Keating Sean M 		2. Issuer Name and Ticker or Trading Symbol

NYMEX HOLDINGS INC [ NMX ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
SVP - Clearing Services
(Last)          (First)          (Middle)

ONE NORTH END AVENUE, WORLD FINANCIAL CENTER 		3. Date of Earliest Transaction (MM/DD/YYYY)

8/22/2008
(Street)

NEW YORK, NY 10282
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock   8/22/2008     M    5700   A $0   (1) 5700   D    
Common Stock   8/22/2008     F    1927   (4) D $81.15   3773   D    
Common Stock   8/22/2008     D    3773   D $0   (5) 0   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Restricted Stock Units     (1) 8/22/2008     M        5700      (2)   (2) Common Stock   5700     (3) 0   D    
Stock Option (right to buy)   $59   8/22/2008     M  (6)       45000      (7) 11/17/2014   Common Stock   45000     (3) 0   D    
Stock Option (right to buy)   $118.97   8/22/2008     M  (8)       13500      (9) 1/9/2016   Common Stock   13500     (3) 0   D    

Explanation of Responses:
( 1)  Each restricted stock unit represents a contingent right to receive one share of NYMEX Holdings, Inc. common stock.
( 2)  The accelerated vesting of the restricted stock units is due to the consummation of the transaction between CME Group Inc., CMEG NY Inc., NYMEX Holdings, Inc. and New York Mercantile Exchange, Inc.
( 3)  Not applicable.
( 4)  Mr. Keating surrendered shares to the Company in order to fulfill tax withholding obligations upon the vesting of restricted stock on August 22, 2008.
( 5)  Disposed of pursuant to merger agreement by and among CME Group Inc., CMEG NY Inc., NYMEX Holdings, Inc. and New York Mercantile Exchange, Inc. at an exchange ratio of 0.2378 shares of CME Group Inc. Class A common stock for each share of NYMEX Holdings, Inc. common stock.
( 6)  Converted into options to purchase 10,701 shares of CME Group Class A common stock at an exercise price of $248.11 per share.
( 7)  The option vests in four equal annual installments beginning on November 17, 2007, subject to additional terms contained in the grant and, if applicable, other contracts.
( 8)  Converted into options to purchase 3,210 shares of CME Group Class A common stock at an exercise price of $500.30 per share.
( 9)  The option vests in four equal annual installments beginning on January 9, 2009, subject to additional terms contained in the grant and, if applicable, other contracts.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Keating Sean M
ONE NORTH END AVENUE
WORLD FINANCIAL CENTER
NEW YORK, NY 10282

SVP - Clearing Services

Signatures
/s/Sean Keating 8/27/2008
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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