Exhibit 4.2



 Exhibit 4.2 
 UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY
CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. 
 THIS SECURITY AND THE COMMON STOCK, IF ANY, ISSUABLE UPON CONVERSION OF THIS SECURITY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
“SECURITIES ACT”), AND MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN ACCORDANCE WITH THE FOLLOWING SENTENCE. BY ITS ACQUISITION HEREOF OR OF A BENEFICIAL INTEREST HEREIN, THE ACQUIRER: 
 (1) REPRESENTS THAT IT AND ANY ACCOUNT FOR WHICH IT IS ACTING IS A “QUALIFIED INSTITUTIONAL BUYER” (WITHIN THE MEANING OF RULE 144A UNDER THE SECURITIES ACT)
AND THAT IT EXERCISES SOLE INVESTMENT DISCRETION WITH RESPECT TO EACH SUCH ACCOUNT, AND 
 (2) AGREES FOR THE BENEFIT OF THE COMPANY THAT IT WILL NOT OFFER,
SELL, PLEDGE OR OTHERWISE TRANSFER THIS SECURITY OR ANY BENEFICIAL INTEREST HEREIN PRIOR TO THE DATE THAT IS THE LATER OF (X) ONE YEAR AFTER THE LAST ORIGINAL ISSUE DATE HEREOF OR SUCH SHORTER PERIOD OF TIME AS PERMITTED BY RULE 144 UNDER THE
SECURITIES ACT OR ANY SUCCESSOR PROVISION THEREUNDER, AND (Y) SUCH LATER DATE, IF ANY, AS MAY BE REQUIRED BY APPLICABLE LAW, EXCEPT: 
 (A) TO THE NASDAQ
OMX GROUP, INC. (FORMERLY KNOWN AS THE NASDAQ STOCK MARKET, INC. AND HEREINAFTER REFERRED TO AS THE “COMPANY”) OR ANY SUBSIDIARY THEREOF, OR 
 (B)
PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BECOME EFFECTIVE UNDER THE SECURITIES ACT, OR 
 (C) TO A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH
RULE 144A UNDER THE SECURITIES ACT, OR 
 (D) PURSUANT TO AN EXEMPTION FROM REGISTRATION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT OR ANY OTHER AVAILABLE
EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 
 PRIOR TO THE REGISTRATION OF ANY TRANSFER IN ACCORDANCE WITH (2)(D) ABOVE, THE
COMPANY AND THE TRUSTEE RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF SUCH LEGAL OPINIONS, CERTIFICATIONS OR OTHER EVIDENCE AS 

  

 1 








 
MAY REASONABLY BE REQUIRED IN ORDER TO DETERMINE THAT THE PROPOSED TRANSFER IS BEING MADE IN COMPLIANCE WITH THE SECURITIES ACT AND APPLICABLE STATE
SECURITIES LAWS. NO REPRESENTATION IS MADE AS TO THE AVAILABILITY OF ANY EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 
  

 2 








 Exhibit 4.2 
 THE NASDAQ STOCK MARKET, INC. 
 Form of 2.50% Convertible Senior Note due 2013 
  

			
	No. 1	  	$[                    ]
		
	CUSIP No. 631103AB4	  	

 The NASDAQ OMX Group, Inc. (formerly known as The Nasdaq Stock Market, Inc.), a corporation duly organized and
validly existing under the laws of the State of Delaware (herein called the “Company,” which term includes any successor corporation or other entity under the Indenture referred to on the reverse hereof), for value received hereby
promises to pay to CEDE & CO., or registered assigns, the principal sum of [                        ] Dollars (which
amount may from time to time be increased or decreased to such other principal amounts (which, taken together with the principal amounts of all other outstanding Notes, shall not, unless permitted by the Indenture, exceed $425,000,000 in aggregate
at any time (or $475,000,000 if the Initial Purchasers exercise their option to purchase additional Notes in full as set forth in the Purchase Agreement)) by adjustments made on the records of the Trustee or the Custodian of the Depositary as set
forth in Schedule A hereto, in accordance with the rules and procedures of the Depositary) on August 15, 2013, and interest thereon as set forth below and Additional Interest in the manner, at the rates and to the Persons set forth in the
Registration Rights Agreement. 
 This Note shall bear interest at the rate of 2.50% per year (subject to increase pursuant to Section 7.01 of the
Indenture) from February 26, 2008, or from the most recent date to which interest had been paid or provided for to, but excluding, the next scheduled Interest Payment Date until August 15, 2013. Interest is payable semi-annually in arrears
on each February 15 and August 15, commencing August 15, 2008, to holders of record at the close of business on the preceding February 1 and August 1 (whether or not such day is a Business Day), respectively. 
 Payment of the principal of and premium, if any, and accrued and unpaid interest and Additional Interest, if any, on this Note shall be made at the office or agency of
the Company maintained for that purpose in the Borough of Manhattan, The City of New York, in such lawful money of the United States of America as at the time of payment shall be legal tender for the payment of public and private debts;
provided, however, interest, including Additional Interest, if any, may be paid by check mailed to such holder’s address as it appears in the Note Register; provided further, however, that, with respect to any
Noteholder with an aggregate principal amount in excess of $1,000,000, at the application of such holder in writing to the Trustee and Paying Agent (if different from the Trustee) not later than the relevant Interest Record Date, accrued and unpaid
interest and Additional Interest, if any, on such holder’s Notes shall be paid by wire transfer in immediately available funds to such holder’s account in the United States, which application shall remain in effect until the Noteholder
notifies the Trustee and Paying Agent to the contrary; provided that any payment to the Depositary or its nominee shall be paid by wire transfer in immediately available funds in accordance with the wire transfer instruction supplied by the
Depositary or its nominee from time to time to the Trustee and Paying Agent (if different from Trustee). 
  

 3 








 Reference is made to the further provisions of this Note set forth on the reverse hereof, including, without limitation,
provisions giving the holder of this Note the right to convert this Note into cash, shares of Common Stock of the Company or a combination of cash and shares of Common Stock, as applicable, on the terms and subject to the limitations set forth in
the Indenture. Such further provisions shall for all purposes have the same effect as though fully set forth at this place. 
 This Note shall be deemed to
be a contract made under the laws of the State of New York, and for all purposes shall be construed in accordance with and governed by the laws of said State (without regard to the conflicts of laws provisions thereof). 
 This Note shall not be valid or become obligatory for any purpose until the certificate of authentication hereon shall have been manually signed by the Trustee or a duly
authorized authenticating agent under the Indenture. 
 [Remainder of page intentionally left blank] 
  

 4 








 IN WITNESS WHEREOF, the Company has caused this Note to be duly executed. 
  

					
	THE NASDAQ OMX GROUP, INC.	 	
			
	By:	 	  
	 	
	Name:	 	David P. Warren	 	
	Title:	 	 Executive Vice President,
 Chief Financial Officer

	 	


  

					
	Dated: [                    ], 2008	 	
		
	 TRUSTEE’S CERTIFICATE OF AUTHENTICATION
 THE BANK OF NEW YORK
 as Trustee, certifies that this is one of the Notes described in the within-named
Indenture.
	 	
			
	By:	 	  
	 	
		 	Authorized Officer	 	








 THE NASDAQ OMX GROUP, INC. (FORMERLY KNOWN AS THE NASDAQ STOCK MARKET, INC.) 
 Form of 2.50% Convertible Senior Note due 2013 
 This Note is
one of a duly authorized issue of Notes of the Company, designated as its 2.50% Convertible Senior Notes due 2013 (herein called the “Notes”), limited to the aggregate principal amount of $425,000,000 (or $475,000,000 if the Initial
Purchasers exercise their option to purchase additional Notes in full as set forth in the Purchase Agreement) all issued or to be issued under and pursuant to an Indenture dated as of February 26, 2008 (herein called the
“Indenture”), between the Company and The Bank of New York (herein called the “Trustee”), to which Indenture and all indentures supplemental thereto reference is hereby made for a description of the rights,
limitations of rights, obligations, duties and immunities thereunder of the Trustee, the Company and the holders of the Notes. Additional Notes may be issued in an unlimited aggregate principal amount, subject to certain conditions specified in the
Indenture. 
 In case an Event of Default, as defined in the Indenture, shall have occurred and be continuing, the principal of, premium, if any, and
interest, including Additional Interest, if any, on all Notes may be declared, by either the Trustee or Noteholders of not less than 25% in aggregate principal amount of Notes then outstanding, and upon said declaration shall become, due and
payable, in the manner, with the effect and subject to the conditions and certain exceptions set forth in the Indenture. 
 Subject to the terms and
conditions of the Indenture, the Company will make all payments and deliveries in respect of the Fundamental Change Repurchase Price and the principal amount on the Maturity Date, as the case may be, to the holder who surrenders a Note to a Paying
Agent to collect such payments in respect of the Note. The Company will pay cash amounts in money of the United States that at the time of payment is legal tender for payment of public and private debts. 
 The Indenture contains provisions permitting the Company and the Trustee in certain circumstances, without the consent of the holders of the Notes, and in other
circumstances, with the consent of the holders of not less than a majority in aggregate principal amount of the Notes at the time outstanding, evidenced as in the Indenture provided, to execute supplemental indentures modifying the terms of the
Indenture and the Notes as described therein. It is also provided in the Indenture that, subject to certain exceptions, the holders of a majority in aggregate principal amount of the Notes at the time outstanding may on behalf of the holders of all
of the Notes waive any past Default or Event of Default under the Indenture and its consequences. 
 No reference herein to the Indenture and no provision of
this Note or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of, premium, if any, and accrued and unpaid interest, and Additional Interest, if any, on this Note at the
place, at the respective times, at the rate and in the lawful money herein prescribed. 
 The Notes are issuable in registered form without coupons in
denominations of $1,000 principal amount and integral multiples thereof. At the office or agency of the Company referred to on the face hereof, and in the manner and subject to the limitations provided in the Indenture, Notes 

  

 6 








 
may be exchanged for a like aggregate principal amount of Notes of other authorized denominations, without payment of any service charge but, if required by
the Company or Trustee, with payment of a sum sufficient to cover any tax, assessments or other governmental charges that may be imposed in connection therewith as a result of the name of the Noteholder of the new Notes issued upon such exchange of
Notes being different from the name of the Noteholder of the old Notes surrendered for such exchange. 
 The Notes are not subject to redemption through the
operation of any sinking fund or otherwise. 
 Upon the occurrence of a Fundamental Change, the holder has the right, at such holder’s option, to
require the Company to repurchase for cash all of such holder’s Notes or any portion thereof (in principal amounts of $1,000 or integral multiples thereof) on the Fundamental Change Repurchase Date at a price equal to the Fundamental Change
Repurchase Price. 
 Subject to the provisions of the Indenture, the holder hereof has the right, at its option, during certain periods and upon the
occurrence of certain conditions specified in the Indenture, prior to the close of business on the Business Day immediately preceding the Maturity Date, to convert any Notes or portion thereof that is $1,000 or an integral multiple thereof, into
cash, shares of Common Stock or a combination of cash and shares of Common Stock, as applicable, at a Conversion Rate specified in the Indenture, as adjusted from time to time as provided in the Indenture. 
 Terms used in this Note and defined in the Indenture are used herein as therein defined. 
  


 7 








 ABBREVIATIONS 
 The following abbreviations, when used in the inscription of the face of this Note, shall be construed as though they were written out in full according to applicable laws or regulations: 
  

							
	TEN COM - as tenants in common	  	UNIF GIFT MIN ACT	 		  	
		  	  
	 	Custodian	  	
		  	(Cust)	 		  	
	TEN ENT - as tenants by the entireties	  	  
	 		  	
		  	(Minor)	 		  	
	JT TEN - as joint tenants with right of survivorship and not as tenants in common	  	 Uniform Gifts to Minors Act
	 	  
	  	(State)

 Additional abbreviations may also be used 
 though not in the above list. 
  

 8 








 SCHEDULE A 
 THE NASDAQ OMX GROUP, INC. (FORMERLY KNOWN AS THE NASDAQ STOCK MARKET, INC.) 
 Form of 2.50% Convertible
Senior Notes due 2013 
 The initial principal amount of this Global Note is
$[                    ]. The following increases or decreases in this Global Note have been made: 
  

									
	 Date of
Exchange
	  	 Amount of decrease in
 Principal Amount of this
 Global
Note
	  	 Amount of increase in
 Principal Amount of this
 Global
Note
	  	 Principal Amount of this
 Global Note following such
 decrease
or increase
	  	 Signature of
authorized signatory
of Trustee
or
Custodian

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

		  		  		  		  	
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	
		  		  		  		  	

  

 9 








 NOTICE OF CONVERSION 
 To: THE NASDAQ OMX GROUP, INC. (FORMERLY KNOWN AS THE NASDAQ STOCK MARKET, INC.) 
 The undersigned registered owner of this Note hereby exercises
the option to convert this Note, or the portion hereof (that is $1,000 principal amount or an integral multiple thereof) below designated, into cash, shares of Common Stock or a combination of cash and shares of Common Stock, as applicable, in
accordance with the terms of the Indenture referred to in this Note, and directs that any shares of Common Stock issuable and deliverable upon such conversion, together with any cash comprising the Daily Conversion Values or a portion of the Daily
Settlement Amounts for each of the thirty Trading Days during the Cash Settlement Averaging Period and for any fractional shares, and any Notes representing any unconverted principal amount hereof, be issued and delivered to the registered holder
hereof unless a different name has been indicated below. If any shares of Common Stock or any portion of this Note not converted are to be issued in the name of a Person other than the undersigned, the undersigned will pay all transfer taxes payable
with respect thereto. Any amount required to be paid to the undersigned on account of interest accompanies this Note. 
  

							
	 Dated:
	 	  
	 		 	  

				
		 		 		 	  

				
		 		 		 	Signature(s)
			
	  
	 		 	
	 Signature Guarantee
	 		 	
			
	Signature(s) must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership in an approved signature
guarantee medallion program pursuant to Securities and Exchange Commission Rule 17Ad-15 if shares of Common Stock are to be issued, or Notes to be delivered, other than to and in the name of the registered holder.	 		 	

  

 10 









					
	Fill in for registration of shares if to be issued, and Notes if to be delivered, other than to and in the name of the registered holder:
			
	  
	 		 	
	(Name)	 		 	
			
	  
	 		 	
	(Street Address)	 		 	
		
	  
	 	
	(City, State and Zip Code)	 	
	Please print name and address	 	

 Principal amount to be converted (if less than all):
$            ,000 
 NOTICE: The above signature(s) of the holder(s) hereof must
correspond with the name as written upon the face of the Note in every particular without alteration or enlargement or any change whatever. 
  

									
		 		 	  
	 		 	
	Social Security or Other Taxpayer Identification Number

  

 11 








 FUNDAMENTAL CHANGE REPURCHASE NOTICE 
 To: THE NASDAQ OMX GROUP, INC. (FORMERLY KNOWN AS THE NASDAQ STOCK MARKET, INC.) 
 The undersigned registered owner of this
Note hereby acknowledges receipt of a notice from The NASDAQ OMX Group, Inc. (formerly known as The Nasdaq Stock Market, Inc. and hereinafter referred to as the “Company”) as to the occurrence of a Fundamental Change with respect to
the Company and specifying the Fundamental Change Repurchase Date and requests and instructs the Company to repay to the registered holder hereof in accordance with the applicable provisions of the Indenture referred to in this Note (1) the
entire principal amount of this Note, or the portion thereof (that is $1,000 principal amount or an integral multiple thereof) below designated, and (2) if such Fundamental Change Repurchase Date does not fall during the period after an
Interest Record Date and on or prior to the corresponding Interest Payment Date, accrued and unpaid interest, including Additional Interest, if any, thereon to, but excluding, such Fundamental Change Repurchase Date. 
 In the case of certificated Notes, the certificate numbers of the Notes to be repurchased are as set forth below: 
  

							
	 Dated:
	 	  
	 		 	
		 		 		 	  

				
		 		 		 	Signature(s)

  

			
	  
	 	
	Social Security or Other Taxpayer Identification Number

 Principal amount to be repaid (if less than all):
$            ,000 
 NOTICE: The above signature(s) of the holder(s) hereof must
correspond with the name as written upon the face of the Note in every particular without alteration or enlargement or any change whatever. 
  

 12 








 ASSIGNMENT AND TRANSFER 
 For value received
                                        
hereby sell(s), assign(s) and transfer(s) unto                          (Please insert social security or Taxpayer
Identification Number of assignee) the within Note, and hereby irrevocably constitutes and appoints
                                        
attorney to transfer the said Note on the books of the Company, with full power of substitution in the premises. 
 In connection with any transfer of the
within Note occurring prior to the Resale Restriction Termination Date, as defined in the Indenture governing such Note, the undersigned confirms that such Note is being transferred: 
  ̈ To The NASDAQ OMX Group, Inc. (formerly known as The Nasdaq Stock Market, Inc.) or a subsidiary thereof; or 
  ̈ Pursuant to the registration statement that has become or been declared effective under the Securities Act of 1933, as amended; or 
  ̈ Pursuant to and in compliance with Rule 144A under the Securities Act of 1933, as amended; or 
  ̈ Pursuant to and in compliance with Rule 144 under the Securities Act of 1933, as amended; or 
  ̈ Pursuant to another available exemption from registration under the Securities Act of 1933, as amended. 
  

 13 









					
	Dated:	 	  
	 	
	
	  

	
	  

	Signature(s)	 	
	
	  

	Signature Guarantee	 	
	
	Signature(s) must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership in an approved signature
guarantee medallion program pursuant to Securities and Exchange Commission Rule 17Ad-15 Notes are to be delivered, other than to and in the name of the registered holder.

 NOTICE: The signature on the assignment must correspond with the name as written upon the face of the Note in
every particular without alteration or enlargement or any change whatever. 
  

 14