SC 13G/A


VIKING GLOBAL PERFORMANCE LLC
VIKING GLOBAL INVESTORS LP
VIKING GLOBAL EQUITIES LP
VIKING GLOBAL EQUITIES II LP
VIKING LONG FUND GP LLC
VIKING LONG FUND MASTER LTD.
O. ANDREAS HALVORSEN
DAVID C. OTT
THOMAS W. PURCELL, JR.

NASD

0001408198
MSCI Inc.
13-4038723


Eric Komitee
203-863-5062

0001132625
vgp#55vgp

SC 13G/A

viking1.txt




                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                ________________

                                  Schedule 13G/A
                                 (Rule 13d-102)
                                ________________

INFORMATION TO BE INCLUDED IN STATEMENTS PURSUANT TO RULES 13d-1(b),(c)
              AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2
                 UNDER THE SECURITIES EXCHANGE ACT OF 1934*
                                 (Amendment No. 3)

                                    MSCI Inc.
                                 (Name of Issuer)

		       Class A Common Stock, par value $.01
                           (Title of Class of Securities)

                                    55354G100
                                  (CUSIP Number)

                              December 31, 2009
          (Date of Event Which Requires Filing of this Statement)


     Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:
     [ ]    Rule 13d-1(b)
     [X]    Rule 13d-1(c)
     [ ]    Rule 13d-1(d)

___________

     *  The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which
would alter the disclosures provided in a prior cover page.


     The information required in the remainder of this cover page shall not
be deemed to be "filed" for the purpose of Section 18 of the Securities
Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that
section of the Act but shall be subject to all other provisions of the Act
(however, see the Notes).







Schedule 13G/A                                                 PAGE 2 of 15

CUSIP No. 55354G100
_____________________________________________________________________________
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
               Viking Global Investors LP
_____________________________________________________________________________
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                    (a)  [ ]
                                                                    (b)  [x]
_____________________________________________________________________________
     (3)  SEC USE ONLY

_____________________________________________________________________________
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
               Delaware
_____________________________________________________________________________

NUMBER OF      (5)  SOLE VOTING POWER
                  0
SHARES         ______________________________________________________________

BENEFICIALLY   (6)  SHARED VOTING POWER
                    0
OWNED BY       ______________________________________________________________

EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING      ______________________________________________________________

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    0
_____________________________________________________________________________
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
          0
_____________________________________________________________________________
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES                             [ ]
_____________________________________________________________________________
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          0%
_____________________________________________________________________________
    (12)  TYPE OF REPORTING PERSON
               PN
_____________________________________________________________________________



Schedule 13G/A                                                  PAGE 3 of 15

CUSIP No. 55354G100
_____________________________________________________________________________
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
               Viking Global Performance LLC
_____________________________________________________________________________
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                    (a)  [ ]
                                                                    (b)  [x]
_____________________________________________________________________________
     (3)  SEC USE ONLY

_____________________________________________________________________________
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
               Delaware
_____________________________________________________________________________

NUMBER OF      (5)  SOLE VOTING POWER
                    0
SHARES         ______________________________________________________________

BENEFICIALLY   (6)  SHARED VOTING POWER
                    0
OWNED BY       ______________________________________________________________

EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING      ______________________________________________________________

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    0
_____________________________________________________________________________
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
          0
_____________________________________________________________________________
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES                             [ ]
_____________________________________________________________________________
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          0%
_____________________________________________________________________________
    (12)  TYPE OF REPORTING PERSON
               CO
_____________________________________________________________________________




Schedule 13G/A	                                               PAGE 4 of 15

CUSIP No. 55354G100
_____________________________________________________________________________
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
               Viking Global Equities LP
_____________________________________________________________________________
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                    (a)  [ ]
                                                                    (b)  [x]
_____________________________________________________________________________
     (3)  SEC USE ONLY

_____________________________________________________________________________
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
               Delaware
_____________________________________________________________________________

NUMBER OF      (5)  SOLE VOTING POWER
                    0
SHARES         ______________________________________________________________

BENEFICIALLY   (6)  SHARED VOTING POWER
                    0
OWNED BY       ______________________________________________________________

EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING      ______________________________________________________________

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    0
_____________________________________________________________________________
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
          0
_____________________________________________________________________________
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES                             [ ]
_____________________________________________________________________________
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          0%
_____________________________________________________________________________
    (12)  TYPE OF REPORTING PERSON
               PN
_____________________________________________________________________________




Schedule 13G/A                                                 PAGE 5 of 15

CUSIP No. 55354G100
_____________________________________________________________________________
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
               Viking Global Equities II LP
_____________________________________________________________________________
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                    (a)  [ ]
                                                                    (b)  [x]
_____________________________________________________________________________
     (3)  SEC USE ONLY

_____________________________________________________________________________
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
               Delaware
_____________________________________________________________________________

NUMBER OF      (5)  SOLE VOTING POWER
                    0
SHARES         ______________________________________________________________

BENEFICIALLY   (6)  SHARED VOTING POWER
                    0
OWNED BY       ______________________________________________________________

EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING      ______________________________________________________________

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    0
_____________________________________________________________________________
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
              0
_____________________________________________________________________________
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES                             [ ]
_____________________________________________________________________________
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          0%
_____________________________________________________________________________
    (12)  TYPE OF REPORTING PERSON
               PN
_____________________________________________________________________________




Schedule 13G/A                                                  PAGE 6 of 15

CUSIP No. 55354G100
_____________________________________________________________________________
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
               Viking Long Fund GP LLC
_____________________________________________________________________________
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                    (a)  [ ]
                                                                    (b)  [x]
_____________________________________________________________________________
     (3)  SEC USE ONLY

_____________________________________________________________________________
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
               Delaware
_____________________________________________________________________________

NUMBER OF      (5)  SOLE VOTING POWER
                     0
SHARES         ______________________________________________________________

BENEFICIALLY   (6)  SHARED VOTING POWER
                    0
OWNED BY       ______________________________________________________________

EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING      ______________________________________________________________

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                0
_____________________________________________________________________________
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
              0
_____________________________________________________________________________
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES                             [ ]
_____________________________________________________________________________
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          0%
_____________________________________________________________________________
    (12)  TYPE OF REPORTING PERSON
              CO
_____________________________________________________________________________




Schedule 13G/A                                                  PAGE 7 of 15

CUSIP No. 55354G100
_____________________________________________________________________________
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
              Viking Long Fund Master Ltd.
_____________________________________________________________________________
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                    (a)  [ ]
                                                                    (b)  [x]
_____________________________________________________________________________
     (3)  SEC USE ONLY

_____________________________________________________________________________
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
               Cayman Islands
_____________________________________________________________________________

NUMBER OF      (5)  SOLE VOTING POWER
                    0
SHARES         ______________________________________________________________

BENEFICIALLY   (6)  SHARED VOTING POWER
                    0
OWNED BY       ______________________________________________________________

EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING      ______________________________________________________________

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    0
_____________________________________________________________________________
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
          0
_____________________________________________________________________________
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES                             [ ]
_____________________________________________________________________________
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          0%
_____________________________________________________________________________
    (12)  TYPE OF REPORTING PERSON
               CO
_____________________________________________________________________________


Schedule 13G/A                                                  PAGE 8 of 15

CUSIP No. 55354G100
_____________________________________________________________________________
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
               O. Andreas Halvorsen
_____________________________________________________________________________
     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                    (a)  [ ]
                                                                    (b)  [x]
_____________________________________________________________________________
     (3)  SEC USE ONLY

_____________________________________________________________________________
     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
          Norway
_____________________________________________________________________________

NUMBER OF      (5)  SOLE VOTING POWER
                    0
SHARES         ______________________________________________________________

BENEFICIALLY   (6)  SHARED VOTING POWER
                    0
OWNED BY       ______________________________________________________________

EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING      ______________________________________________________________

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    0
_____________________________________________________________________________
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
          0
_____________________________________________________________________________
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES                             [ ]
_____________________________________________________________________________
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          0%
_____________________________________________________________________________
    (12)  TYPE OF REPORTING PERSON
               IN
_____________________________________________________________________________





Schedule 13G/A                                                  PAGE 9 of 15

CUSIP No. 55354G100
_____________________________________________________________________________

     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
               David C. Ott
_____________________________________________________________________________

     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                    (a)  [ ]
                                                                    (b)  [x]
_____________________________________________________________________________

     (3)  SEC USE ONLY
_____________________________________________________________________________

     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
          United States
_____________________________________________________________________________

NUMBER OF      (5)  SOLE VOTING POWER
                    0
SHARES         ______________________________________________________________

BENEFICIALLY   (6)  SHARED VOTING POWER
                    0
OWNED BY       ______________________________________________________________

EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING      ______________________________________________________________

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    0
_____________________________________________________________________________
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
          0
_____________________________________________________________________________
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES                             [ ]
_____________________________________________________________________________
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
          0%
_____________________________________________________________________________
    (12)  TYPE OF REPORTING PERSON
               IN
_____________________________________________________________________________





Schedule 13G/A                                                 PAGE 10 of 15

CUSIP No. 55354G100
_____________________________________________________________________________
     (1)  NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
               Thomas W. Purcell, Jr.
_____________________________________________________________________________

     (2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                    (a)  [ ]
                                                                    (b)  [x]
_____________________________________________________________________________

     (3)  SEC USE ONLY
_____________________________________________________________________________

     (4)  CITIZENSHIP OR PLACE OF ORGANIZATION
          United States
_____________________________________________________________________________

NUMBER OF      (5)  SOLE VOTING POWER
                    0
SHARES         ______________________________________________________________

BENEFICIALLY   (6)  SHARED VOTING POWER
                    0
OWNED BY       ______________________________________________________________

EACH           (7)  SOLE DISPOSITIVE POWER
                    0
REPORTING      ______________________________________________________________

PERSON WITH    (8)  SHARED DISPOSITIVE POWER
                    0
_____________________________________________________________________________
     (9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
          BY EACH REPORTING PERSON
          0
_____________________________________________________________________________
    (10)  CHECK BOX IF THE AGGREGATE AMOUNT
          IN ROW (9) EXCLUDES CERTAIN SHARES                             [ ]
_____________________________________________________________________________
    (11)  PERCENT OF CLASS REPRESENTED
          BY AMOUNT IN ROW (9)
         0%
_____________________________________________________________________________
    (12)  TYPE OF REPORTING PERSON
               IN
_____________________________________________________________________________





Schedule 13G/A                                                 PAGE 11 of 15

ITEM 1(a).  NAME OF ISSUER:
              MSCI Inc.

ITEM 1(b).  ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
  Wall Street Plaza, 88 Pine Street, New York, NY 10005

ITEM 2(a). NAME OF PERSON FILING:
	  Viking Global Performance LLC ("VGP"),
	  Viking Global Investors LP ("VGI"),
	  Viking Global Equities LP ("VGE"),
	  Viking Global Equities II LP ("VGEII"),
          Viking Long Fund GP LLC ("VLFGP")
	  Viking Long Fund Master Ltd. ("VLFM")
	  O. Andreas Halvorsen, David C. Ott and
	  Thomas W. Purcell, Jr.

ITEM 2(b).  ADDRESS OF PRINCIPAL OFFICE OR, IF NONE, RESIDENCE:
               The business address of each of the Reporting Persons is
               55 Railroad Avenue, Greenwich, CT 06830.

ITEM 2(c).  CITIZENSHIP:
VGE, VGEII, VGI,are each Delaware limited partnerships,VLFM is a Cayman Island
Corporation, and VGP and VLFGP are both Delaware limited liability company.
O. Andreas Halvorsen is a citizen of Norway.  David C. Ott and
Thomas W. Purcell, Jr. are citizens of the United States.

ITEM 2(d).  TITLE OF CLASS OF SECURITIES:
                  Common Stock

ITEM 2(e).  CUSIP NUMBER:  55354G100

ITEM 3.  IF THIS STATEMENT IS FILED PURSUANT TO 13d-1(b) OR 13d-2(b) OR (c),
CHECK WHETHER THE PERSON FILING IS A:

          (a) [ ]   Broker or dealer registered under Section 15 of the
                    Act

          (b) [ ]   Bank as defined in Section 3(a)(6) of the Act

          (c) [ ]   Insurance Company as defined in Section 3(a)(19) of
                    the Act

          (d) [ ]   Investment Company registered under Section 8 of the
                    Investment Company Act of 1940

          (e) [ ]   Investment Adviser registered under Section 203 of the
                    Investment Advisers Act of 1940: see Rule 13d-
                    1(b)(1)(ii)(E)

          (f) [ ]   Employee Benefit Plan, Pension Fund which is subject
                    to the provisions of the Employee Retirement Income
                    Security Act of 1974 or Endowment Fund; see Rule 13d-
                    1(b)(1)(ii)(F)


Schedule 13G/A                                               PAGE 12 of 15

          (g) [ ]   Parent Holding Company, in accordance with Rule 13d-
                    1(b)(ii)(G);

          (h) [ ]   Savings Associations as defined in Section 3(b) of the
                    Federal Deposit Insurance Act;

          (i) [ ]   Church Plan that is excluded from the definition of an
                    investment company under Section 3(c)(14) of the
                    Investment Company Act of 1940;

          (j) [ ]  A non-U.S. institution in accordance with
		   Rule 240.13d-1(b)(1)(ii)(J)

	  (K) [ ]  Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
                   If filing as a non-U.S. institution in accordance with
                   Rule 240.13d-1(b)(1)(ii)(J), please specify
		   the type of institution:

ITEM 4.   OWNERSHIP.

     A.  VGI
          (a)  Amount beneficially owned 0
          (b)  Percent of class: 0%
               (All percentages herein are based on 104,988,489 shares of
                   Common Stock reported to be outstanding on the
		    Company's 10-K as of January 25, 2010)
          (c)  Number of shares as to which such person has:
                  (i)    sole power to vote or to direct the vote
                         0
                  (ii)   shared power to vote or to direct the vote
                         0
                  (iii)  sole power to dispose or to direct the disposition
                         of 0
                  (iv)   shared power to dispose or to direct the disposition
                         of  0

       VGI provides managerial services to VGE, VGEII, Viking Long Fund LP
	and Viking Long Fund Intermediate LP. VGI is also party
	to an investment management agreement with VGE III Portfolio
	Ltd., Viking Long Fund III Ltd and Viking Long Fund Master Ltd,
	companies organized under the aws of the Cayman Islands, pursuant
	to which VGI performs managerial services in connection with such
	accounts.VGI have authority to dispose of and vote securities held
	in such accounts.  VGI does not own directly any shares of Common Stock.




Schedule 13G/A                                               PAGE 13 of 15


     B.  VGP
          (a)  Amount beneficially owned: 0
          (b)  Percent of class: 0%
          (c)  Number of shares as to which such person has:
                  (i)    sole power to vote or to direct the vote
                         0
                  (ii)   shared power to vote or to direct the vote
                         0
                  (iii)  sole power to dispose or to direct the disposition
                         of 0
                  (iv)   shared power to dispose or to direct the disposition
                         of 0

		  VGP, as the general partner of VGE and VGEII, has the power
		  to dispose of and vote the shares of common stock
	          directly owned by VGE and VGEII.  VGP is a party
		  to an investment management agreement with VGE III Portfolio
		  Ltd. a company organized under the laws of the Cayman
		  Islands, pursuant to which VGP has investment authority
		  with respect to securities held in such accounts.
		  VGP has authority to dispose of and vote securities
		  held in such accounts.VGP does not own directly
		  any shares of common stock.

        Based on Rule 13d-3 of the Securities Exchange Act of 1934,
	as amended, (the "Act"), VGP and VGI may each be deemed
	to own beneficially shares directly held by VGE, VGEII and
	VGE III Portfolio Ltd, and VLFGP and VGI may each be deemed
	to own benefically shares directly held by VLFM.

     C.  VLFGP
          (a)  Amount beneficially owned: 0
          (b)  Percent of class: 0%
          (c)  Number of shares as to which such person has:
                  (i)    sole power to vote or to direct the vote
                         0
                  (ii)   shared power to vote or to direct the vote
                         0
                  (iii)  sole power to dispose or to direct the disposition
                         of 0
                  (iv)   shared power to dispose or to direct the disposition
                         of 0

                  VLFGP , as the general partner of VLFM, has the power
		  to dispose of and vote the shares of common stock
	          directly owned by VLFM.  VLFGP does not own directly
		  any shares of common stock.

        Based on Rule 13d-3 of the Securities Exchange Act of 1934,
	as amended, (the "Act"), VGP and VGI may each be deemed
	to own beneficially shares directly held by VGE, VGEII and
	VGE III Portfolio Ltd, and VLFGP and VGI may each be deemed
	to own benefically shares directly held by VLFM.

     D.  VGE
          (a)  Amount beneficially owned: 0
          (b)  Percent of class: 0%
          (c)  Number of shares as to which such person has:
                  (i)    sole power to vote or to direct the vote
                         0
                  (ii)   shared power to vote or to direct the vote
                         0
                  (iii)  sole power to dispose or to direct the disposition
                         of 0
                  (iv)   shared power to dispose or to direct the disposition
                         of 0

                   VGE has the power to dispose of and the power to
                   vote the shares of Common Stock directly owned by it,
                   which power may be exercised by its general partner, VGP,
                   and by VGI, an affiliate of VGP, that provides
                   managerial services to VGE.

   E.  VGE II
          (a)  Amount beneficially owned: 0
          (b)  Percent of class: 0%
          (c)  Number of shares as to which such person has:
                  (i)    sole power to vote or to direct the vote
                         0
                  (ii)   shared power to vote or to direct the vote
                       0
                  (iii)  sole power to dispose or to direct the disposition
                         of 0
                  (iv)   shared power to dispose or to direct the disposition
                         of 0

                   VGEII has the power to dispose of and the power to
                   vote the shares of Common Stock directly owned by it,
                   which power may be exercised by its general partner, VGP
                   and by VGI, an affiliate of VGP, which provides
                   managerial services to VGEII.

   F.  VLFM
          (a)  Amount beneficially owned: 0
          (b)  Percent of class: 0%
          (c)  Number of shares as to which such person has:
                  (i)    sole power to vote or to direct the vote
                         0
                  (ii)   shared power to vote or to direct the vote
                       0
                  (iii)  sole power to dispose or to direct the disposition
                         of 0
                  (iv)   shared power to dispose or to direct the disposition
                         of 0

                   VLFM has the power to dispose of and the power to vote the
		   shares of common stock directly owned by it, which powermay
		   be exercised by its general partner, VLFGP and by VGI,
		   an affiliate of VLFGP,that provides managerial services
                   to VLFM.




Schedule 13G/A                                                PAGE 14 of 15

   G.  O. Andreas Halvorsen, David C. Ott and Thomas W. Purcell, Jr.
        (a)  Amount beneficially owned: 0
        (b)  Percent of class: 0%
        (c)  Number of shares as to which such person has:
                  (i)    sole power to vote or to direct the vote
                         0
                  (ii)   shared power to vote or to direct the vote
                         0
                  (iii)  sole power to dispose or to direct the disposition
                         of 0
                  (iv)   shared power to dispose or to direct the disposition
                         of 0

	Messrs. Halvorsen, Ott, and Purcell, as
	Executive Committee Members of VGI, VGP, and VLFGP,
	have shared power to dispose of and shared power
	to vote the Common Stock beneficially owned by
	VGI, VGP and VLFGP.  None of Messrs. Halvorsen, Ott and Purcell
	directly owns any shares of Common Stock other
	than through the funds.  Based on Rule 13d-3 of the Act,
	each may be deemed to beneficially own the shares directly
	owned by VGE, VGE II, VGE III Portfolio Ltd and VLFM.

ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.
      If this statement is being filed to report the fact that as of the
date hereof the Reporting Persons has ceased to be the beneficial owner
of more than five percent of the class of securities,
check the following.[X]

ITEM 6.   OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.
           Not applicable.

ITEM 7.   IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED
                  THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY.
	Not applicable.

ITEM 8.   IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.
	Not applicable.

ITEM 9.   NOTICE OF DISSOLUTION OF GROUP.
	Not applicable.

ITEM 10.  CERTIFICATION.  (if filing pursuant to Rule 13d-1(c))
     By signing below each Reporting Person certifies that, to the best
of its knowledge and belief, the securities referred to above were not
acquired and are not held for the purpose of or with the effect of changing
or influencing the control of the issuer of the securities and were not
acquired and not held in connection with or as a participant in any
transaction having that purpose or effect.




Schedule 13G/A                                             PAGE 15 of 15

SIGNATURES

      After reasonable inquiry and to the best of our knowledge and belief,
the undersigned certify that the information set forth in this statement is
true, complete and correct.

DATED: February 16, 2010
			/s/ O. ANDREAS HALVORSEN
                        By: O. Andreas Halvorsen - individually and
                        as an Executive Committee Member of
                        VIKING GLOBAL PERFORMANCE LLC, on behalf
                        of itself and VIKING GLOBAL EQUITIES LP,
                        VIKING GLOBAL EQUITIES II LP,
                        and as an Executive Committee Member of
                        Viking Global Partners LLC, on behalf of
                        VIKING GLOBAL INVESTORS LP, and as
			an Executive Committee Member of
			VIKING LONG FUND GP LLC on behalf of itself
                        and VIKING LONG FUND MASTER LTD.

                        /s/ DAVID C. OTT
                        By: David C. Ott- individually and
                        as an Executive Committee Member of
                        VIKING GLOBAL PERFORMANCE LLC, on behalf
                        of itself and VIKING GLOBAL EQUITIES LP,
                        VIKING GLOBAL EQUITIES II LP,
                        and as an Executive Committee Member of
                        Viking Global Partners LLC, on behalf of
                        VIKING GLOBAL INVESTORS LP, and as
			an Executive Committee Member of
			VIKING LONG FUND GP LLC on behalf of itself
                        and VIKING LONG FUND MASTER LTD.


                        /s/ THOMAS W. PURCELL, JR.
                        By: Thomas W. Purcell, Jr.- individually and
                        as an Executive Committee Member of
                        VIKING GLOBAL PERFORMANCE LLC, on behalf
                        of itself and VIKING GLOBAL EQUITIES LP,
                        VIKING GLOBAL EQUITIES II LP,
                        and as an Executive Committee Member of
                        Viking Global Partners LLC, on behalf of
                        VIKING GLOBAL INVESTORS LP, and as
			an Executive Committee Member of
			VIKING LONG FUND GP LLC on behalf of itself
                        and VIKING LONG FUND MASTER LTD.


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