Fund detail
Viking Global Investors (Halvorsen)
hedge-fund, active
Quarters
52
2013-09-30
$18.11B
Positions
59
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 | TIME WARNER INC TWXCHF | $975.2M | 5.38% | 14,817,831 | -11,693,532 | -44.11% | 8.52% | 2013-06-30 | $66 | ~$58 | +13.82% | |
| 2 | VALEANT PHARMACEUTICALS INTL | $933.7M | 5.15% | 8,949,608 | -542,648 | -5.72% | 4.54% | 2013-06-30 | $104 | ~$86 | +21.20% | |
| 3 | DANAHER CORP DEL DHR | $792.8M | 4.38% | 11,436,737 | -780,757 | -6.39% | 4.30% | 2013-06-30 | $69 | ~$63 | +9.51% | |
| 4 | MICHAEL KORS HLDGS LTD | $700.0M | 3.86% | 9,393,711 | -4,081,029 | -30.29% | 4.64% | 2013-06-30 | $75 | ~$62 | +20.15% | |
| 5 | LYONDELLBASELL INDUSTRIES N | $681.7M | 3.76% | 9,309,665 | -1,229,700 | -11.67% | 3.88% | 2013-06-30 | $73 | ~$66 | +10.52% | |
| 6 | COMCAST CORP NEW CMCSA | $661.0M | 3.65% | 14,652,171 | -7,298,984 | -33.25% | 5.09% | 2013-06-30 | $45 | ~$42 | +8.06% | |
| 7 | MASTERCARD INC MA | $513.5M | 2.83% | 763,287 | -102,008 | -11.79% | 2.76% | 2013-06-30 | $673 | ~$574 | +17.11% | |
| 8 | VISA INC V | $451.5M | 2.49% | 2,362,800 | -48,797 | -2.02% | 2.45% | 2013-06-30 | $191 | ~$183 | +4.57% | |
| 9 | BLOCK H & R INC HRB | $432.7M | 2.39% | 16,229,237 | -5,766,128 | -26.22% | 3.39% | 2013-06-30 | $27 | ~$28 | -3.93% | |
| 10 | ALEXION PHARMACEUTICALS INC ALXN | $401.3M | 2.22% | 3,454,640 | -2,090,309 | -37.70% | 2.84% | 2013-06-30 | $116 | ~$92 | +25.93% | |
| 11 | VALERO ENERGY CORP NEW VLO | $282.2M | 1.56% | 8,263,954 | -5,736,618 | -40.97% | 2.71% | 2013-06-30 | $34 | ~$35 | -1.78% | |
| 12 | ADOBE SYS INC ADBE | $276.5M | 1.53% | 5,323,240 | -1,028,080 | -16.19% | 1.61% | 2013-06-30 | $52 | ~$46 | +14.00% | |
| 13 | CARTER INC CRI | $213.9M | 1.18% | 2,818,095 | -135,000 | -4.57% | 1.22% | 2013-06-30 | $76 | ~$74 | +2.46% | |
| 14 | ALLSTATE CORP ALL | $120.3M | 0.66% | 2,378,974 | -4,905,426 | -67.34% | 1.95% | 2013-06-30 | $51 | ~$48 | +5.05% | |
| 15 | CROWN CASTLE INTL CORP | $80.3M | 0.44% | 1,099,632 | -2,028,539 | -64.85% | 1.26% | 2013-06-30 | $73 | ~$72 | +0.88% | |
| 16 | INTUITIVE SURGICAL INC ISRG | $79.2M | 0.44% | 210,426 | -1,498,627 | -87.69% | 4.81% | 2013-06-30 | $376 | ~$506 | -25.66% | |
| 17 | EQUINIX INC | $72.1M | 0.40% | 392,602 | -445,963 | -53.18% | 0.86% | 2013-06-30 | $184 | ~$185 | -0.58% | |
| 18 | BIOGEN IDEC INC BIIB | $69.9M | 0.39% | 290,345 | -675,943 | -69.95% | 1.16% | 2013-06-30 | $241 | ~$215 | +11.88% | |
| 19 | VERISK ANALYTICS INC VRSK | $38.3M | 0.21% | 590,111 | -1,714,194 | -74.39% | 0.76% | 2013-06-30 | $65 | ~$60 | +8.81% | |
| 20 | AETNA INC NEW | $10.2M | 0.06% | 160,076 | -899,924 | -84.90% | 0.37% | 2013-06-30 | $64 | ~$64 | +0.76% |