Fund detail
Viking Global Investors (Halvorsen)
hedge-fund, active
Quarters
52
2020-12-31
$36.37B
Positions
96
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 | MICROSOFT CORP MSFT | $2.63B | 7.24% | 11,838,092 | +3,581,072 | +43.37% | 6.27% | 2016-06-30 | $222 | ~$187 | +18.94% | |
| 2 | BRIDGEBIO PHARMA INC BBIO | $1.89B | 5.21% | 26,620,991 | +0 | +0.00% | 3.61% | 2019-06-30 | $71 | ~$27 | +163.66% | |
| 3 | ADAPTIVE BIOTECHNOLOGIES COR ADPT | $1.77B | 4.88% | 29,993,708 | -3,500,000 | -10.45% | 5.88% | 2019-06-30 | $59 | ~$48 | +22.42% | |
| 4 | FIDELITY NATL INFORMATION SV FIS | $1.67B | 4.60% | 11,835,412 | +2,948,891 | +33.18% | 4.73% | 2019-12-31 | $141 | ~$136 | +4.38% | |
| 5 | T-MOBILE US INC TMUS | $1.17B | 3.23% | 8,705,481 | +635,362 | +7.87% | 3.33% | 2015-03-31 | $135 | ~$96 | +39.85% | |
| 6 | ALPHABET INC GOOGL | $1.09B | 2.99% | 619,791 | +427,842 | +222.89% | 1.02% | 2015-12-31 | $1,753 | ~$1,490 | +17.61% | |
| 7 | BOSTON SCIENTIFIC CORP BSX | $1.08B | 2.96% | 29,990,892 | +11,161,162 | +59.27% | 2.60% | 2015-09-30 | $36 | ~$38 | -6.42% | |
| 8 | JPMORGAN CHASE & CO JPM | $1.07B | 2.96% | 8,459,075 | -991,900 | -10.50% | 3.29% | 2017-03-31 | $127 | ~$91 | +39.22% | |
| 9 | UNITEDHEALTH GROUP INC UNH | $979.7M | 2.69% | 2,793,665 | +2,793,665 | 2016-12-31 | $351 | ~$290 | +20.74% | |||
| 10 | VISA INC V | $893.6M | 2.46% | 4,085,538 | +3,763,943 | +1170.40% | 0.23% | 2013-06-30 | $219 | ~$206 | +5.95% | |
| 11 | CENTENE CORP DEL CNC | $785.7M | 2.16% | 13,087,649 | -4,357,911 | -24.98% | 3.68% | 2014-06-30 | $60 | ~$55 | +8.55% | |
| 12 | ABCELLERA BIOLOGICS INC ABCL | $776.0M | 2.13% | 19,283,744 | +19,283,744 | 2020-12-31 | $40 | ~$40 | +0.00% | |||
| 13 | DISNEY WALT CO DIS | $773.9M | 2.13% | 4,271,505 | +4,271,505 | 2013-09-30 | $181 | ~$123 | +46.83% | |||
| 14 | NUANCE COMMUNICATIONS INC NUANEUR | $722.3M | 1.99% | 16,382,663 | -601,801 | -3.54% | 2.04% | 2020-06-30 | $44 | ~$26 | +67.79% | |
| 15 | MERCADOLIBRE INC MELI | $690.0M | 1.90% | 411,914 | -61,534 | -13.00% | 1.85% | 2018-03-31 | $1,675 | ~$947 | +76.99% | |
| 16 | PALO ALTO NETWORKS INC PANW | $670.7M | 1.84% | 1,887,130 | +1,887,130 | 2020-12-31 | $355 | ~$355 | +0.00% | |||
| 17 | AMAZON COM INC AMZN | $652.9M | 1.80% | 200,471 | -71,801 | -26.37% | 3.10% | 2015-06-30 | $3,257 | ~$1,774 | +83.57% | |
| 18 | AMERICAN EXPRESS CO AXP | $631.7M | 1.74% | 5,224,231 | -5,624,070 | -51.84% | 3.93% | 2015-03-31 | $121 | ~$87 | +39.68% | |
| 19 | FLEETCOR TECHNOLOGIES INC FLT1EUR | $619.3M | 1.70% | 2,269,747 | +1,799,953 | +383.14% | 0.40% | 2017-06-30 | $273 | ~$233 | +17.09% | |
| 20 | TAIWAN SEMICONDUCTOR MFG LTD TSM | $610.8M | 1.68% | 5,601,289 | -545,834 | -8.88% | 1.80% | 2020-09-30 | $109 | ~$81 | +34.50% | |
| 21 | API GROUP CORP APG | $605.0M | 1.66% | 33,333,333 | +0 | +0.00% | 1.71% | 2020-06-30 | $18 | ~$12 | +49.38% | |
| 22 | ZIMMER BIOMET HOLDINGS INC ZBH | $595.9M | 1.64% | 3,867,074 | +2,176,989 | +128.81% | 0.83% | 2014-06-30 | $154 | ~$136 | +13.02% | |
| 23 | FORTIVE CORP FTV | $564.0M | 1.55% | 7,963,937 | +1,147,692 | +16.84% | 1.88% | 2019-09-30 | $71 | ~$58 | +22.90% | |
| 24 | AON PLC | $543.1M | 1.49% | 2,570,620 | -442,286 | -14.68% | 2.25% | 2020-06-30 | $211 | ~$193 | +9.62% | |
| 25 | HILTON WORLDWIDE HLDGS INC HLT | $525.1M | 1.44% | 4,719,901 | -4,111,691 | -46.56% | 2.72% | 2020-06-30 | $111 | ~$74 | +49.35% | |
| 26 | MOODYS CORP MCO | $477.6M | 1.31% | 1,645,420 | +345,707 | +26.60% | 1.36% | 2013-06-30 | $290 | ~$152 | +90.40% | |
| 27 | PARKER-HANNIFIN CORP PH | $458.5M | 1.26% | 1,683,025 | -835,423 | -33.17% | 1.84% | 2017-03-31 | $272 | ~$184 | +47.81% | |
| 28 | GUARDANT HEALTH INC GH | $455.6M | 1.25% | 3,534,842 | -320,051 | -8.30% | 1.56% | 2019-09-30 | $129 | ~$72 | +79.21% | |
| 29 | SERVICENOW INC NOW | $422.8M | 1.16% | 768,107 | +768,107 | 2019-09-30 | $550 | ~$280 | +96.85% | |||
| 30 | BOOKING HOLDINGS INC BKNG | $419.4M | 1.15% | 188,281 | -160,167 | -45.97% | 2.15% | 2019-03-31 | $2,227 | ~$1,716 | +29.81% |