Fund detail
Viking Global Investors (Halvorsen)
hedge-fund, active
Quarters
52
2020-09-30
$27.68B
Positions
86
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 | $1.74B | 6.27% | 8,257,020 | +4,546,346 | +122.52% | 3.26% | 2016-06-30 | $210 | ~$174 | +20.70% | |
| 2 | ADAPTIVE BIOTECHNOLOGIES COR ADPT | $1.63B | 5.88% | 33,493,708 | +0 | +0.00% | 7.00% | 2019-06-30 | $49 | ~$48 | +0.68% | |
| 3 | FIDELITY NATL INFORMATION SV FIS | $1.31B | 4.73% | 8,886,521 | +2,172,500 | +32.36% | 3.89% | 2019-12-31 | $147 | ~$133 | +11.01% | |
| 4 | AMERICAN EXPRESS CO AXP | $1.09B | 3.93% | 10,848,301 | +350,803 | +3.34% | 4.32% | 2015-03-31 | $100 | ~$87 | +15.81% | |
| 5 | CENTENE CORP DEL CNC | $1.02B | 3.68% | 17,445,560 | +1,338,982 | +8.31% | 4.42% | 2014-06-30 | $58 | ~$55 | +5.48% | |
| 6 | BRIDGEBIO PHARMA INC BBIO | $998.8M | 3.61% | 26,620,991 | +0 | +0.00% | 3.75% | 2019-06-30 | $38 | ~$27 | +39.12% | |
| 7 | T-MOBILE US INC TMUS | $922.9M | 3.33% | 8,070,119 | +4,270,569 | +112.40% | 1.71% | 2015-03-31 | $114 | ~$94 | +21.39% | |
| 8 | JPMORGAN CHASE & CO JPM | $909.8M | 3.29% | 9,450,975 | +3,039,489 | +47.41% | 2.61% | 2017-03-31 | $96 | ~$91 | +5.47% | |
| 9 | AMAZON COM INC AMZN | $857.3M | 3.10% | 272,272 | -340,614 | -55.58% | 7.31% | 2015-06-30 | $3,149 | ~$1,774 | +77.47% | |
| 10 | HILTON WORLDWIDE HLDGS INC HLT | $753.5M | 2.72% | 8,831,592 | +1,559,137 | +21.44% | 2.31% | 2020-06-30 | $85 | ~$74 | +14.53% | |
| 11 | BOSTON SCIENTIFIC CORP BSX | $719.5M | 2.60% | 18,829,730 | +372,457 | +2.02% | 2.80% | 2015-09-30 | $38 | ~$39 | -2.54% | |
| 12 | AON PLC | $621.6M | 2.25% | 3,012,906 | +56,877 | +1.92% | 2.46% | 2020-06-30 | $206 | ~$193 | +7.04% | |
| 13 | THERMO FISHER SCIENTIFIC INC TMO | $608.1M | 2.20% | 1,377,223 | -356,921 | -20.58% | 2.72% | 2013-06-30 | $442 | ~$252 | +75.14% | |
| 14 | BOOKING HOLDINGS INC BKNG | $596.1M | 2.15% | 348,448 | +145,701 | +71.86% | 1.40% | 2019-03-31 | $1,711 | ~$1,716 | -0.30% | |
| 15 | NUANCE COMMUNICATIONS INC NUANEUR | $563.7M | 2.04% | 16,984,464 | +4,184,908 | +32.70% | 1.40% | 2020-06-30 | $33 | ~$26 | +26.31% | |
| 16 | FORTIVE CORP FTV | $519.5M | 1.88% | 6,816,245 | -1,943,801 | -22.19% | 2.56% | 2019-09-30 | $76 | ~$69 | +10.67% | |
| 17 | MERCADOLIBRE INC MELI | $512.5M | 1.85% | 473,448 | +404,104 | +582.75% | 0.30% | 2018-03-31 | $1,082 | ~$947 | +14.36% | |
| 18 | PARKER-HANNIFIN CORP PH | $509.6M | 1.84% | 2,518,448 | +1,075,655 | +74.55% | 1.14% | 2017-03-31 | $202 | ~$184 | +9.79% | |
| 19 | TAIWAN SEMICONDUCTOR MFG LTD TSM | $498.3M | 1.80% | 6,147,123 | +6,147,123 | 2020-09-30 | $81 | ~$81 | +0.00% | |||
| 20 | API GROUP CORP APG | $474.3M | 1.71% | 33,333,333 | +0 | +0.00% | 1.75% | 2020-06-30 | $14 | ~$12 | +17.12% | |
| 21 | COMCAST CORP NEW CMCSA | $464.7M | 1.68% | 10,045,065 | -18,478,611 | -64.78% | 4.81% | 2013-06-30 | $46 | ~$38 | +20.57% | |
| 22 | GUARDANT HEALTH INC GH | $430.9M | 1.56% | 3,854,893 | +786,720 | +25.64% | 1.08% | 2019-09-30 | $112 | ~$72 | +55.43% | |
| 23 | LAS VEGAS SANDS CORP LVS | $400.8M | 1.45% | 8,589,312 | -2,536,031 | -22.80% | 2.19% | 2013-09-30 | $47 | ~$48 | -3.75% | |
| 24 | CHUBB LIMITED | $396.7M | 1.43% | 3,416,010 | +1,213,977 | +55.13% | 1.20% | 2016-03-31 | $116 | ~$122 | -4.77% | |
| 25 | CME GROUP INC CME | $387.6M | 1.40% | 2,316,366 | +1,833,687 | +379.90% | 0.34% | 2014-03-31 | $167 | ~$153 | +9.42% | |
| 26 | AVALONBAY CMNTYS INC AVB | $381.3M | 1.38% | 2,553,481 | +2,553,481 | 2020-09-30 | $149 | ~$149 | +0.00% | |||
| 27 | MOODYS CORP MCO | $376.7M | 1.36% | 1,299,713 | +322,365 | +32.98% | 1.16% | 2013-06-30 | $290 | ~$116 | +150.23% | |
| 28 | ADVANCED MICRO DEVICES INC AMD | $369.0M | 1.33% | 4,500,835 | +4,500,835 | 2020-09-30 | $82 | ~$82 | +0.00% | |||
| 29 | RAYTHEON TECHNOLOGIES CORP RTX | $353.7M | 1.28% | 6,147,033 | +6,147,033 | 2020-09-30 | $58 | ~$58 | +0.00% | |||
| 30 | ANALOG DEVICES INC ADI | $341.9M | 1.24% | 2,928,432 | +968,489 | +49.41% | 1.04% | 2018-09-30 | $117 | ~$106 | +10.32% |