Fund detail
Viking Global Investors (Halvorsen)
hedge-fund, active
Quarters
52
2016-06-30
$23.54B
Positions
55
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 | AMAZON COM INC AMZN | $2.35B | 9.97% | 3,278,984 | -158,509 | -4.61% | 8.98% | 2015-06-30 | $716 | ~$492 | +45.46% | |
| 2 | TEVA PHARMACEUTICAL INDS LTD TEVA | $1.39B | 5.92% | 27,736,655 | -5,234,967 | -15.88% | 7.77% | 2015-03-31 | $50 | ~$60 | -16.65% | |
| 3 | ALPHABET INC GOOGL | $1.26B | 5.36% | 1,794,927 | -255,560 | -12.46% | 6.89% | 2015-12-31 | $704 | ~$777 | -9.49% | |
| 4 | CABOT OIL & GAS CORP CTRA | $909.3M | 3.86% | 35,324,625 | -1,078,068 | -2.96% | 3.64% | 2015-12-31 | $26 | ~$19 | +33.54% | |
| 5 | LILLY ELI & CO LLY | $738.5M | 3.14% | 9,377,395 | -2,386,383 | -20.29% | 3.73% | 2015-03-31 | $79 | ~$72 | +8.82% | |
| 6 | ALPHABET INC GOOG | $582.2M | 2.47% | 841,255 | -215,129 | -20.36% | 3.46% | 2015-12-31 | $692 | ~$759 | -8.80% | |
| 7 | NETFLIX INC NFLX | $575.3M | 2.44% | 6,288,571 | -1,771,111 | -21.97% | 3.63% | 2014-06-30 | $91 | ~$83 | +10.09% | |
| 8 | ALLERGAN PLC | $448.2M | 1.90% | 1,939,703 | -2,942,254 | -60.27% | 5.76% | 2015-06-30 | $231 | ~$303 | -23.63% | |
| 9 | WALGREENS BOOTS ALLIANCE INC WBA | $288.9M | 1.23% | 3,469,712 | -2,809,472 | -44.74% | 2.33% | 2014-12-31 | $83 | ~$80 | +4.61% | |
| 10 | GULFPORT ENERGY CORP GPOR1EUR | $280.0M | 1.19% | 8,956,338 | -2,420,899 | -21.28% | 1.42% | 2015-12-31 | $31 | ~$26 | +18.66% | |
| 11 | PIONEER NAT RES CO PXDEUR | $206.9M | 0.88% | 1,368,586 | -1,186,582 | -46.44% | 1.58% | 2014-03-31 | $151 | ~$176 | -14.14% | |
| 12 | HUMANA INC HUM | $146.0M | 0.62% | 811,824 | -416,549 | -33.91% | 0.99% | 2013-06-30 | $180 | ~$167 | +7.75% | |
| 13 | CANADIAN PAC RY LTD | $122.1M | 0.52% | 948,408 | -1,351,042 | -58.76% | 1.34% | 2013-12-31 | $129 | ~$180 | -28.62% | |
| 14 | AETNA INC NEW | $117.5M | 0.50% | 961,700 | -2,896,103 | -75.07% | 1.91% | 2013-06-30 | $122 | ~$106 | +15.35% | |
| 15 | CONSTELLATION BRANDS INC STZ | $76.9M | 0.33% | 465,183 | -361,525 | -43.73% | 0.55% | 2013-09-30 | $165 | ~$65 | +154.60% | |
| 16 | EDITAS MEDICINE INC EDIT | $41.7M | 0.18% | 1,709,401 | -426,122 | -19.95% | 0.32% | 2016-03-31 | $24 | ~$35 | -29.36% |