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Investor profile
Andreas Halvorsen
Viking Global Investors · Co-Founder & CIO · Net worth: ~$7B
Co-founded Viking Global in 1999 after leaving Julian Robertson's Tiger Management. Runs one of the largest and most respected long-short equity hedge funds, famous for patient fundamental research and concentrated positions.
"Long-short equity, deep fundamental research, Tiger Cub pedigree."
Tracked positions
6
Top concentration
31%
Longest holding
Visa (since 2015)
Realized 10-year track record
Viking Global Investors (private; press estimates)
10y CAGR
9.6%
net of fees
Alpha vs S&P
-3.5%
vs 13.1% benchmark
Win rate
40%
years beating S&P
Quality score
4.2
computed 0–10
Best year
+21%
Worst year
-8%
Cumulative 10y
2.5×
Volatility
10%
Recent moves
Manager quality score: 8/10
Every tracked 13F move — buys, adds, trims, and exits — over the last two quarters.
Q4 2025
3 buys · 0 sells
| Ticker | Activity | % portfolio |
|---|---|---|
| META | Add 78% 37.53% add — Q4's biggest META buyer. | 1.02% |
| MSFT | Add 22% Tiger-style quality compounder add. | 4.80% |
| NVDA | Add 18% Still leaning into AI infrastructure. | 6.20% |
Q3 2025
1 buy · 0 sells
| Ticker | Activity | % portfolio |
|---|---|---|
| META | Add 45% Big Viking META add. | 1.13% |
Q2 2025
2 buys · 0 sells
| Ticker | Activity | % portfolio |
|---|---|---|
| META | Add 25% First of three consecutive META adds. | 0.80% |
| MSFT | Add 15% Building Microsoft. | 3.80% |
Q1 2025
1 buy · 0 sells
| Ticker | Activity | % portfolio |
|---|---|---|
| META | Buy (new) Viking first entered META here. | 0.60% |
Q4 2024
2 buys · 0 sells
| Ticker | Activity | % portfolio |
|---|---|---|
| META | Add 32% Viking META build. | 0.70% |
| MSFT | Add 18% Microsoft add. | 4.20% |
Q3 2024
1 buy · 0 sells
| Ticker | Activity | % portfolio |
|---|---|---|
| META | Add 22% Viking META build. | 0.60% |
Q2 2024
1 buy · 0 sells
| Ticker | Activity | % portfolio |
|---|---|---|
| META | Buy (new) Viking's first META position. | 0.50% |
Top holdings
| Ticker | Company | % Portfolio |
|---|---|---|
| META | Meta Platforms Top position. Built aggressively through 2025. | 6.4% |
| V | Visa Payment network compounder — decade-long hold. | 5.8% |
| MSFT | Microsoft Quality AI infrastructure play. | 4.8% |
| NVDA | NVIDIA AI compute leader. | 6.2% |
| UNH | UnitedHealth Healthcare scale. | 4.1% |
| MA | Mastercard The other payment network. | 3.7% |
Want Andreas move-alerts?
One email per 13F filing. Summarizes every new position, exit, and trim.
Similar investors
Tracked managers whose top positions overlap with Andreas's portfolio.
Data sourced from Viking Global Investors 13F filings with the SEC. Approximate snapshot. Not investment advice.