Viking Global Investors

Viking Global Investors as of Sept. 30, 2012

Portfolio Holdings for Viking Global Investors

Viking Global Investors holds 0 positions in its portfolio as reported in the September 2012 quarterly 13F filing

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                                                                 VALUE     SHRS OR   SH/ PUT/ INVSTMT OTH    VOTING AUTHORITY
NAME OF ISSUER                      TITLE OF CLASS   CUSIP     X($1000)    PRN AMT   PRN CALL DSCRETN MGR  SOLE    SHARED    NONE
APPLE INC                           COM            037833100     729,812   1,094,000 SH       SOLE       1094000
ACE LTD                             SHS            H0023R105     378,237   5,003,135 SH       SOLE       5003135
AMERICAN INTL GROUP INC             COM NEW        026874784     246,100   7,505,362 SH       SOLE       7505362
ALBEMARLE CORP                      COM            012653101      90,891   1,725,357 SH       SOLE       1725357
AMERICAN TOWER CORP NEW             COM            03027X100     103,758   1,453,400 SH       SOLE       1453400
ARIAD PHARMACEUTICALS INC           COM            04033A100      46,834   1,934,500 SH       SOLE       1934500
BIOGEN IDEC INC                     COM            09062X103     298,423   2,000,023 SH       SOLE       2000023
BERKSHIRE HATHAWAY INC DEL          CL B NEW       084670702      82,123     931,100 SH       SOLE       931100
CITIGROUP INC                       COM NEW        172967424      65,430   1,999,700 SH       SOLE       1999700
CARDINAL HEALTH INC                 COM            14149Y108     202,294   5,191,026 SH       SOLE       5191026
CROWN CASTLE INTL CORP              COM            228227104     259,823   4,053,412 SH       SOLE       4053412
COLFAX CORP                         COM            194014106     137,582   3,751,896 SH       SOLE       3751896
CIGNA CORPORATION                   COM            125509109      50,037   1,060,800 SH       SOLE       1060800
CIT GROUP INC                       COM NEW        125581801      30,672     778,691 SH       SOLE       778691
CAPITAL ONE FINL CORP               COM            14040H105     573,473  10,059,176 SH       SOLE       10059176
CABOT OIL & GAS CORP                COM            127097103      24,599     547,871 SH       SOLE       547871
CEPHEID                             COM            15670R107      89,410   2,591,610 SH       SOLE       2591610
CARTER INC                          COM            146229109     195,756   3,635,900 SH       SOLE       3635900
CATAMARAN CORP                      COM            148887102      40,187     410,200 SH       SOLE       410200
DANAHER CORP DEL                    COM            235851102     342,068   6,202,514 SH       SOLE       6202514
DAVITA INC                          COM            23918K108     300,693   2,902,170 SH       SOLE       2902170
LAUDER ESTEE COS INC                CL A           518439104     444,028   7,211,761 SH       SOLE       7211761
EASTMAN CHEM CO                     COM            277432100     344,852   6,048,985 SH       SOLE       6048985
EQUINIX INC                         COM NEW        29444U502     104,174     505,581 SH       SOLE       505581
EQT CORP                            COM            26884L109     162,297   2,750,800 SH       SOLE       2750800
FACEBOOK INC                        CL A           30303M102      89,944   4,152,547 SH       SOLE       4152547
GRACE W R & CO DEL NEW              COM            38388F108      96,175   1,627,894 SH       SOLE       1627894
HARTFORD FINL SVCS GROUP INC        COM            416515104      47,573   2,447,200 SH       SOLE       2447200
BLOCK H & R INC                     COM            093671105     411,010  23,716,711 SH       SOLE       23716711
HUMANA INC                          COM            444859102     115,361   1,644,500 SH       SOLE       1644500
ICICI BK LTD                        ADR            45104G104      53,597   1,335,271 SH       SOLE       1335271
INTUITIVE SURGICAL INC              COM NEW        46120E602      43,119      87,000 SH       SOLE       87000
INVESCO LTD                         SHS            G491BT108      62,218   2,489,730 SH       SOLE       2489730
LILLY ELI & CO                      COM            532457108     234,167   4,939,200 SH       SOLE       4939200
LYONDELLBASELL INDUSTRIES N         SHS - A -      N53745100     484,111   9,371,111 SH       SOLE       9371111
MASTERCARD INC                      CL A           57636Q104     373,266     826,762 SH       SOLE       826762
MEDNAX INC                          COM            58502B106      46,713     627,444 SH       SOLE       627444
MEDIVATION INC                      COM            58501N101     217,243   3,855,254 SH       SOLE       3855254
METLIFE INC                         COM            59156R108     130,107   3,775,614 SH       SOLE       3775614
MARSH & MCLENNAN COS INC            COM            571748102     109,697   3,233,059 SH       SOLE       3233059
NOBLE CORPORATION BAAR              NAMEN -AKT     H5833N103     121,963   3,408,700 SH       SOLE       3408700
NEWS CORP                           CL A           65248E104     753,706  30,757,252 SH       SOLE       30757252
ONCOTHYREON INC                     COM            682324108      16,768   3,268,715 SH       SOLE       3268715
PRICELINE COM INC                   COM NEW        741503403     421,431     680,749 SH       SOLE       680749
PRUDENTIAL FINL INC                 COM            744320102      45,951     843,000 SH       SOLE       843000
QUALCOMM INC                        COM            747525103     640,437  10,251,916 SH       SOLE       10251916
RESEARCH IN MOTION LTD              COM            760975102      34,500   4,600,000 SH       SOLE       4600000
SHERWIN WILLIAMS CO                 COM            824348106     228,944   1,537,467 SH       SOLE       1537467
SCHLUMBERGER LTD                    COM            806857108     554,273   7,663,117 SH       SOLE       7663117
SANDISK CORP                        COM            80004C101      40,824     940,000 SH       SOLE       940000
STERICYCLE INC                      COM            858912108      98,940   1,093,473 SH       SOLE       1093473
STATE STR CORP                      COM            857477103     260,756   6,214,400 SH       SOLE       6214400
SOUTHWESTERN ENERGY CO              COM            845467109      38,558   1,108,637 SH       SOLE       1108637
THERMO FISHER SCIENTIFIC INC        COM            883556102     111,756   1,899,646 SH       SOLE       1899646
TRIPADVISOR INC                     COM            896945201     248,445   7,544,645 SH       SOLE       7544645
TIME WARNER INC                     COM NEW        887317303     610,095  13,458,973 SH       SOLE       13458973
UNIVERSAL HLTH SVCS INC             CL B           913903100     136,073   2,975,594 SH       SOLE       2975594
US BANCORP DEL                      COM NEW        902973304      49,885   1,454,400 SH       SOLE       1454400
VISA INC                            COM CL A       92826C839     713,053   5,310,200 SH       SOLE       5310200
VIACOM INC NEW                      CL B           92553P201     139,088   2,595,422 SH       SOLE       2595422
VALEANT PHARMACEUTICALS INTL        COM            91911K102     294,588   5,329,986 SH       SOLE       5329986
WELLCARE HEALTH PLANS INC           COM            94946T106      37,622     665,300 SH       SOLE       665300
WHOLE FOODS MKT INC                 COM            966837106      16,002     164,300 SH       SOLE       164300
WILLIAMS COS INC DEL                COM            969457100     538,113  15,387,852 SH       SOLE       15387852
WAL-MART STORES INC                 COM            931142103     161,258   2,185,071 SH       SOLE       2185071
WYNN RESORTS LTD                    COM            983134107      35,278     305,600 SH       SOLE       305600

S REPORT SUMMARY 66 # OF DATA RECORDS