Fund detail
Viking Global Investors (Halvorsen)
hedge-fund, active
Quarters
52
2015-06-30
$26.47B
Positions
56
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 | ALLERGAN PLC | $2.06B | 7.80% | 6,804,034 | +6,804,034 | 2015-06-30 | $303 | ~$303 | +0.00% | |||
| 2 | AMAZON COM INC AMZN | $990.8M | 3.74% | 2,282,561 | +2,282,561 | 2015-06-30 | $434 | ~$434 | +0.00% | |||
| 3 | AVAGO TECHNOLOGIES LTD | $633.9M | 2.39% | 4,769,014 | +4,769,014 | 2015-06-30 | $133 | ~$133 | +0.00% | |||
| 4 | CIGNA CORPORATION | $472.2M | 1.78% | 2,914,815 | +2,914,815 | 2014-12-31 | $162 | ~$131 | +24.04% | |||
| 5 | AETNA INC NEW | $394.8M | 1.49% | 3,097,599 | +3,097,599 | 2013-06-30 | $127 | ~$94 | +35.49% | |||
| 6 | ANTHEM INC ELV | $313.0M | 1.18% | 1,906,701 | +1,906,701 | 2014-12-31 | $164 | ~$135 | +21.79% | |||
| 7 | WHITING PETE CORP NEW | $290.8M | 1.10% | 8,653,431 | +8,653,431 | 2015-06-30 | $34 | ~$34 | +0.00% | |||
| 8 | TWENTY FIRST CENTY FOX INC | $263.4M | 1.00% | 8,093,383 | +8,093,383 | 2013-09-30 | $33 | ~$34 | -3.27% | |||
| 9 | BIOGEN INC BIIB | $207.4M | 0.78% | 513,444 | +513,444 | 2013-06-30 | $404 | ~$260 | +55.22% | |||
| 10 | AMERIPRISE FINL INC AMP | $201.7M | 0.76% | 1,614,743 | +1,614,743 | 2014-12-31 | $125 | ~$130 | -3.84% | |||
| 11 | UNIVERSAL HLTH SVCS INC UHS | $173.5M | 0.66% | 1,220,743 | +1,220,743 | 2013-06-30 | $142 | ~$102 | +39.85% | |||
| 12 | MCKESSON CORP MCK | $140.6M | 0.53% | 625,568 | +625,568 | 2013-12-31 | $225 | ~$161 | +39.29% | |||
| 13 | BALL CORP BALL | $128.6M | 0.49% | 1,832,789 | +1,832,789 | 2015-06-30 | $70 | ~$70 | +0.00% | |||
| 14 | TRANSDIGM GROUP INC TDG | $102.9M | 0.39% | 458,176 | +458,176 | 2015-06-30 | $225 | ~$225 | +0.00% | |||
| 15 | ALLSTATE CORP ALL | $93.0M | 0.35% | 1,433,280 | +1,433,280 | 2013-06-30 | $65 | ~$48 | +34.81% | |||
| 16 | COOPER COS INC | $48.7M | 0.18% | 273,563 | +273,563 | 2015-06-30 | $178 | ~$178 | +0.00% | |||
| 17 | KITE PHARMA INC | $41.3M | 0.16% | 677,334 | +677,334 | 2014-09-30 | $61 | ~$40 | +52.65% | |||
| 18 | ALEXION PHARMACEUTICALS INC ALXN | $36.5M | 0.14% | 201,756 | +201,756 | 2013-06-30 | $181 | ~$103 | +75.45% | |||
| 19 | DEERE & CO DE | $25.2M | 0.10% | 259,975 | +259,975 | 2015-06-30 | $97 | ~$97 | +0.00% |