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Fund detail

Viking Global Investors (Halvorsen)

hedge-fund, active

Quarters 52
2026-03-31 $35.75B
Positions 77
Showing 30 of 96 rows

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 ADVANCED MICRO DEVICES INC $0 0 -3,742,191 -100.00% 2.13%
2 BANK AMERICA CORP $0 0 -4,494,629 -100.00% 0.66%
3 BOSTON SCIENTIFIC CORP $0 0 -2,509,808 -100.00% 0.64%
4 CHEWY INC $0 0 -13,536,645 -100.00% 1.19%
5 COSTAR GROUP INC $0 0 -1,442,582 -100.00% 0.26%
6 DIGITAL RLTY TR INC $0 0 -1,507,988 -100.00% 0.62%
7 DRAFTKINGS INC NEW $0 0 -19,119,912 -100.00% 1.75%
8 FIGMA INC $0 0 -5,752,388 -100.00% 0.57%
9 IQVIA HLDGS INC $0 0 -619,236 -100.00% 0.37%
10 ITAU UNIBANCO HLDG S A $0 0 -28,396,545 -100.00% 0.54%
11 LOWES COS INC $0 0 -912,040 -100.00% 0.58%
12 MASIMO CORP $0 0 -514,340 -100.00% 0.18%
13 RALLYBIO CORP $0 0 -4,194,777 -100.00% 0.01%
14 RIOT PLATFORMS INC $0 0 -12,428,894 -100.00% 0.42%
15 ROSS STORES INC $0 0 -3,167,479 -100.00% 1.51%
16 SAIA INC $0 0 -1,088,582 -100.00% 0.94%
17 TRADEWEB MKTS INC $0 0 -2,768,659 -100.00% 0.79%
18 UBS GROUP AG $0 0 -9,128,817 -100.00% 1.13%
19 UNITEDHEALTH GROUP INC $0 0 -1,197,273 -100.00% 1.05%
20 RALLYBIO CORP RLYB $4.7M 0.01% 524,347 +524,347 2026-03-31 $9 ~$9 -3.71%
21 PEPGEN INC PEPG $6.2M 0.02% 3,482,434 +0 +0.00% 0.06% 2022-06-30 $2 ~$6 -69.86%
22 FORGENT POWER SOLUTIONS INC FPS $19.0M 0.05% 650,000 +650,000 2026-03-31 $29 ~$32 -7.93%
23 EQUIPMENTSHARE COM INC EQPT $20.4M 0.06% 1,000,000 +1,000,000 2026-03-31 $20 ~$28 -28.23%
24 GINKGO BIOWORKS HOLDINGS INC DNA $21.9M 0.06% 3,577,128 +0 +0.00% 0.08% 2024-09-30 $6 ~$8 -24.79%
25 TREVI THERAPEUTICS INC TRVI $38.2M 0.11% 3,198,644 +0 +0.00% 0.11% 2022-09-30 $12 ~$6 +114.02%
26 STANDARD BIOTOOLS INC LAB $53.9M 0.15% 58,651,170 +0 +0.00% 0.20% 2024-03-31 $1 ~$3 -66.08%
27 TWILIO INC TWLO $56.7M 0.16% 450,770 +450,770 2021-12-31 $126 ~$202 -37.65%
28 DAMORA THERAPEUTICS INC DMRA $59.9M 0.17% 2,311,082 +2,311,082 2026-03-31 $26 ~$26 +1.12%
29 ORIC PHARMACEUTICALS INC ORIC $73.8M 0.21% 5,824,533 -748,158 -11.38% 0.14% 2024-03-31 $13 ~$11 +13.20%
30 EDWARDS LIFESCIENCES CORP EW $87.9M 0.25% 1,097,578 +1,097,578 2019-09-30 $80 ~$77 +3.90%