Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Silver Lake Partners III LP
 2. Date of Event Requiring Statement (Month/Day/Year)
05/03/2010		 3. Issuer Name and Ticker or Trading Symbol
INTERACTIVE DATA CORP/MA/ [IDC]
(Last)
(First)
(Middle)
2775 SAND HILL ROAD, SUITE 100		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

MENLO PARK, CA 94025		 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Silver Lake Partners III LP
2775 SAND HILL ROAD, SUITE 100
MENLO PARK, CA 94025		     X    
Silver Lake Technology Associates III, L.P.
2775 SAND HILL ROAD, SUITE 100
MENLO PARK, CA 94025		     X    
SLTA III (GP), L.L.C.
2775 SAND HILL ROAD, SUITE 100
MENLO PARK, CA 94025		     X    
Silver Lake Group, L.L.C.
2775 SAND HILL ROAD, SUITE 100
MENLO PARK, CA 94025		     X    

Signatures

/s/ James A. Davidson, managing member of Silver Lake Group, L.L.C., as managing member of SLTA III (GP ) L.L.C., as general partner of Silver Lake Technology Associates III, L.P., as general partner of Silver Lake Partners III, L.P. 05/13/2010
**Signature of Reporting Person Date
/s/ James A. Davidson, managing member of Silver Lake Group, L.L.C., as managing member of SLTA III (GP ) L.L.C., as general partner of Silver Lake Technology Associates III, L.P. 05/13/2010
**Signature of Reporting Person Date
/s/ James A. Davidson, managing member of Silver Lake Group, L.L.C., as managing member of SLTA III (GP ) L.L.C. 05/13/2010
**Signature of Reporting Person Date
/s/ James A. Davidson, managing member of Silver Lake Group, L.L.C. 05/13/2010
**Signature of Reporting Person Date

Explanation of Responses:

No securities are beneficially owned

* If the form is filed by more than one reporting person, see Instruction 5(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).
 
Remarks:
This Form 3 is being filed on behalf of Silver Lake Partners III, L.P., a Delaware limited partnership ("SLP III"), Silver
Lake Technology Associates III, L.P., a Delaware limited partnership and general partner of SLP III ("SLTA III"), SLTA III
(GP), L.L.C., a Delaware limited liability company and general partner of SLTA III ("SLTA GP"), and Silver Lake Group L.L.C.,
a Delaware limited liability company and the sole member of SLTA GP ("Group LLC", and together with SLP III, SLTA III
and SLTA GP, the "Reporting Persons").  As of the date hereof, 50% of the outstanding equity interests of Igloo Investors
Ltd., a Cayman Islands exempted company ("Igloo"), are held by SLP III.  Igloo is the sole member of Hg Investors LLC, a
Delaware limited liability company ("Hg Investors").  In connection with the execution and delivery of an agreement and plan
of merger, dated as of May 3, 2010 (the "Merger Agreement"), among the Issuer, Hg Investors and Igloo Merger Corporation,
a Delaware corporation and wholly owned subsidiary of Hg Investors ("Merger Sub"), each of Pearson DBC Holdings Inc. (the
"Stockholder"), Pearson plc and Hg Investors entered into a voting agreement, dated as of May 3, 2010 (the "Voting
Agreement").  Pursuant to the Voting Agreement, the Stockholder agreed to, among other things, vote 57,554,795 shares of common
stock of the Issuer in favor of the merger of Merger Sub with and into the Issuer upon the terms and subject to the conditions set
forth in the Merger Agreement.  As a consequence of the Voting Agreement, each of the Reporting Persons may be deemed to have voting
power over more than 10% of the common stock of the Issuer.  The Reporting Persons do not have, and expressly disclaim, any pecuniary
interest in shares of common stock of the Issuer, and, as a result, no shares of the Issuer's common stock are reported in this
Form 3 as being beneficially owned by the Reporting Persons.

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