Fund detail
Viking Global Investors (Halvorsen)
hedge-fund, active
Quarters
52
2015-09-30
$26.09B
Positions
63
2026-03-31
2025-12-31
2025-09-30
2025-06-30
2025-03-31
2024-12-31
2024-09-30
2024-06-30
2024-03-31
2023-12-31
2023-09-30
2023-06-30
2023-03-31
2022-12-31
2022-09-30
2022-06-30
2022-03-31
2021-12-31
2021-09-30
2021-06-30
2021-03-31
2020-12-31
2020-09-30
2020-06-30
2020-03-31
2019-12-31
2019-09-30
2019-06-30
2019-03-31
2018-12-31
2018-09-30
2018-06-30
2018-03-31
2017-12-31
2017-09-30
2017-06-30
2017-03-31
2016-12-31
2016-09-30
2016-06-30
2016-03-31
2015-12-31
2015-09-30
2015-06-30
2015-03-31
2014-12-31
2014-09-30
2014-06-30
2014-03-31
2013-12-31
2013-09-30
2013-06-30
Price is the latest implied close from the selected quarter's 13F (value ÷ shares). Est. Cost is a running average that assumes each quarter's trades cleared near the midpoint of consecutive 13F closes (or yfinance VWAP when available). Most accurate for slow accumulators, least accurate for activists who build positions in a few days.
| # | Issuer | Value ↓ | Weight | Shares | Share Δ | Share Δ % | Prev Weight | First Held | Price | Est. Cost | Unrealized % | Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | WALGREENS BOOTS ALLIANCE INC WBA | $1.93B | 7.41% | 23,272,886 | -1,352,227 | -5.49% | 7.86% | 2014-12-31 | $83 | ~$80 | +4.39% | |
| 2 | GOOGLE INC | $1.62B | 6.20% | 2,534,329 | -201,823 | -7.38% | 5.58% | 2014-09-30 | $638 | ~$557 | +14.61% | |
| 3 | GOOGLE INC | $682.5M | 2.62% | 1,121,683 | -25,866 | -2.25% | 2.26% | 2015-03-31 | $608 | ~$544 | +11.77% | |
| 4 | CANADIAN PAC RY LTD | $597.5M | 2.29% | 4,161,642 | -1,114,553 | -21.12% | 3.19% | 2013-12-31 | $144 | ~$180 | -20.43% | |
| 5 | MASTERCARD INC MA | $489.1M | 1.87% | 5,427,711 | -2,790,985 | -33.96% | 2.90% | 2013-06-30 | $90 | ~$76 | +18.77% | |
| 6 | SEALED AIR CORP NEW SDA | $402.3M | 1.54% | 8,582,498 | -4,235,531 | -33.04% | 2.49% | 2014-12-31 | $47 | ~$44 | +7.41% | |
| 7 | ENVISION HEALTHCARE HLDGS IN | $362.6M | 1.39% | 9,854,659 | -2,449,009 | -19.90% | 1.84% | 2015-03-31 | $37 | ~$39 | -4.69% | |
| 8 | MOHAWK INDS INC MHK | $359.8M | 1.38% | 1,979,371 | -2,331,742 | -54.09% | 3.11% | 2013-12-31 | $182 | ~$143 | +26.98% | |
| 9 | CROWN CASTLE INTL CORP NEW CCI | $354.6M | 1.36% | 4,496,338 | -1,034,014 | -18.70% | 1.68% | 2014-12-31 | $79 | ~$79 | -0.45% | |
| 10 | ILLUMINA INC ILMN | $314.6M | 1.21% | 1,789,486 | -3,179,470 | -63.99% | 4.10% | 2013-12-31 | $176 | ~$131 | +34.40% | |
| 11 | CTRIP COM INTL LTD CTRPUSD | $310.5M | 1.19% | 4,914,181 | -850,333 | -14.75% | 1.58% | 2014-06-30 | $63 | ~$58 | +8.27% | |
| 12 | KANSAS CITY SOUTHERN KSUEUR | $280.9M | 1.08% | 3,091,200 | -1,712,441 | -35.65% | 1.66% | 2014-03-31 | $91 | ~$109 | -16.92% | |
| 13 | MALLINCKRODT PUB LTD CO | $250.1M | 0.96% | 3,911,692 | -1,503,979 | -27.77% | 2.41% | 2015-03-31 | $64 | ~$125 | -48.89% | |
| 14 | DAVITA HEALTHCARE PARTNERS I DVA | $197.8M | 0.76% | 2,735,075 | -2,233,476 | -44.95% | 1.49% | 2013-12-31 | $72 | ~$71 | +1.33% | |
| 15 | AMERIPRISE FINL INC AMP | $174.2M | 0.67% | 1,596,323 | -18,420 | -1.14% | 0.76% | 2014-12-31 | $109 | ~$130 | -16.00% | |
| 16 | ALIBABA GROUP HLDG LTD BABA | $146.5M | 0.56% | 2,483,773 | -3,557,912 | -58.89% | 1.88% | 2014-09-30 | $59 | ~$91 | -35.24% | |
| 17 | VERTEX PHARMACEUTICALS INC VRTX | $140.0M | 0.54% | 1,344,464 | -460,722 | -25.52% | 0.84% | 2014-12-31 | $104 | ~$119 | -12.20% | |
| 18 | LEGG MASON INC LMEUR | $102.7M | 0.39% | 2,469,096 | -79,962 | -3.14% | 0.50% | 2014-12-31 | $42 | ~$53 | -22.04% | |
| 19 | DEERE & CO DE | $15.9M | 0.06% | 214,772 | -45,203 | -17.39% | 0.10% | 2015-06-30 | $74 | ~$97 | -23.75% | |
| 20 | WHITING PETE CORP NEW | $15.8M | 0.06% | 1,031,483 | -7,621,948 | -88.08% | 1.10% | 2015-06-30 | $15 | ~$34 | -54.55% | |
| 21 | PROQR THRAPEUTICS N V | $8.4M | 0.03% | 576,632 | -18,675 | -3.14% | 0.04% | 2015-03-31 | $15 | ~$21 | -30.82% |