Institutional Manager · CIK 0001393825
Hudson Bay Capital Management LP
Stamford, CT · File #028-12909
Latest AUM
$30.34B
Positions
1,279
Top-10 Concentration
44.2%
Filings
12
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| ADD | NVIDIA CORPORATION | NVDA | +5,643,791 | +$1.05B | -$21,929 |
| REDUCE | ISHARES TR | 464287655 | -3,275,000 | -$806.2M | +$14.7M |
| ADD | ADVANCED MICRO DEVICES INC | AMD | +2,748,844 | +$588.7M | +$60,540 |
| REDUCE | ISHARES TR | 464288513 | -6,810,000 | -$549.1M | -$3.9M |
| REDUCE | INVESCO QQQ TR | IVZ | -791,468 | -$486.2M | +$11.3M |
| ADD | PALANTIR TECHNOLOGIES INC | PLTR | +2,055,000 | +$365.3M | -$2.3M |
| ADD | NETFLIX INC | NFLX | +3,831,584 | +$359.2M | -$20.4M |
| EXITED | SOUTHERN CO | 842587DP9 | -279,129,000 | -$314.7M | $0 |
| EXITED | CNX RES CORP | 12653CAG3 | -122,098,000 | -$305.4M | $0 |
| EXITED | DEXCOM INC | 252131AK3 | -259,028,000 | -$257.3M | $0 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 20251,279 pos · $30.34B
- 13F HOLDINGS REPORT (Amended)Q/E Dec 20251,517 pos · $30.08B
- 13F HOLDINGS REPORTQ/E Sep 20251,518 pos · $30.09B
- 13F HOLDINGS REPORT (Amended)Q/E Jun 20251,443 pos · $29.44B
- 13F HOLDINGS REPORTQ/E Jun 20251,444 pos · $29.45B
- 13F HOLDINGS REPORTQ/E Mar 20251,339 pos · $32.43B
- 13F HOLDINGS REPORTQ/E Dec 2024946 pos · $28.43B
- 13F HOLDINGS REPORTQ/E Sep 2024865 pos · $24.72B
- 13F HOLDINGS REPORTQ/E Jun 2024787 pos · $21.26B
- 13F HOLDINGS REPORTQ/E Mar 2024739 pos · $18.03B
- 13F HOLDINGS REPORT (Amended)Q/E Dec 2023801 pos · $12.73B
- 13F HOLDINGS REPORTQ/E Dec 2023798 pos · $12.68B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | TESLA INC | TSLA | 3,020,000 | $1.36B | 7.78% |
| 2 | NVIDIA CORPORATION | NVDA | 5,917,900 | $1.10B | 6.32% |
| 3 | NVIDIA CORPORATION | NVDA | 5,451,221 | $1.02B | 5.82% |
| 4 | TESLA INC | TSLA | 1,801,254 | $810.1M | 4.64% |
| 5 | AMAZON COM INC | AMZN | 2,900,000 | $669.4M | 3.83% |
| 6 | ADVANCED MICRO DEVICES INC | AMD | 2,750,000 | $588.9M | 3.37% |
| 7 | AMAZON COM INC | AMZN | 2,515,633 | $580.7M | 3.32% |
| 8 | TESLA INC | TSLA | 1,240,000 | $557.7M | 3.19% |
| 9 | ISHARES TR | 464287655 | 2,149,000 | $529.0M | 3.03% |
| 10 | ADVANCED MICRO DEVICES INC | AMD | 2,350,000 | $503.3M | 2.88% |
| 11 | SPDR S&P 500 ETF TR | SPY | 704,700 | $480.5M | 2.75% |
| 12 | PALANTIR TECHNOLOGIES INC | PLTR | 2,697,500 | $479.5M | 2.75% |
| 13 | PALANTIR TECHNOLOGIES INC | PLTR | 2,555,000 | $454.2M | 2.60% |
| 14 | FLAGSTAR BANK NATIONAL ASSOC | FLG-PU | 34,689,439 | $436.7M | 2.50% |
| 15 | MICROSOFT CORP | MSFT | 900,000 | $435.3M | 2.49% |
| 16 | MICROSOFT CORP | MSFT | 800,138 | $387.0M | 2.22% |
| 17 | NETFLIX INC | NFLX | 3,850,000 | $361.0M | 2.07% |
| 18 | NETFLIX INC | NFLX | 3,750,760 | $351.7M | 2.01% |
| 19 | BERKSHIRE HATHAWAY INC DEL | BRK-A | 690,000 | $346.8M | 1.99% |
| 20 | APPLE INC | AAPL | 1,150,000 | $312.6M | 1.79% |