Hudson Bay Capital Management LP holds a diversified book of 1261 stocks worth $16.6B as of Q1 2026 (disclosed May 13, 2026, a ~43-day 13F lag). This quarter they opened Unitedhealth Group Inc and trimmed Nvidia Corp. Their largest long position is Nvidia Corp at 5% of the equity book. They also disclosed $10.9B in put options (a bearish bet) and $1.5B in call options (bullish), shown separately below and excluded from the equity book. Cloning the disclosed picks since 2013 would be +266% (+10.7%/yr). That is a simulation of the disclosed long book, not audited returns.
The reported book (valued from quarter-end) returned +274.6%, a 8.6-point gap that is the cost of the ~43-day 13F disclosure lag a real follower can't avoid.
Growth of $10,000 cloning Hudson Bay Capital Management LP's disclosed long 13F book, rebalanced on each filing date (so it reflects each quarter's actual reporting lag, ~43 days for the latest filing, with no look-ahead), total-return basis (dividends reinvested), derived from end-of-day prices. “Their reported book” values the same picks from quarter-end, before they were public. S&P 500 is SPY total return over the same window. Excludes shorts, cash, options and non-13F holdings. Not investment advice.
Top-heavy: diversified book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
86% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices, no cost basis
Other tracked managers holding the same core names as Hudson Bay Capital Management LP
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| JPMORGAN CHASE & CO | 78 / 80 | $454.2B |
| CITIGROUP INC | 78 / 80 | $51.3B |
| BlackRock, Inc. | 77 / 80 | $2.1T |
| FMR LLC | 77 / 80 | $727.3B |
| MORGAN STANLEY | 77 / 80 | $477.4B |
| GOLDMAN SACHS GROUP INC | 77 / 80 | $237.8B |
| WELLS FARGO & COMPANY/MN | 77 / 80 | $110.5B |
| BANK OF AMERICA CORP /DE/ | 76 / 80 | $301.4B |
Ranked by how many of Hudson Bay Capital Management LP's top 80 disclosed names each fund also holds: a cross-fund conviction signal from the latest 13F of every tracked manager.
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Nvidia Corporation COM | $910.1M | 5.22M | 5.5% | ▼−6.6% Reduced · −369K sh | |
| 2 | Tesla Inc COM | $705.4M | 1.90M | 4.2% | ▲+4.7% Added · +85K sh | |
| 3 | Amazon Com Inc COM | $614.7M | 2.95M | 3.7% | ▲+13% Added · +341K sh | |
| 4 | Apple Inc COM | $517.6M | 2.04M | 3.1% | ▲+71% Added · +848K sh | |
| 5 | Echostar Corp NOTE 3.875%11/3 | $469.9M | 131.20M | 2.8% | ▲+59% Added · +48.6M sh | |
| 6 | Flagstar Bank National Assoc COM NEW | $456.9M | 34.69M | 2.7% | —Held | |
| 7 | Netflix Inc. COM | $440.4M | 4.58M | 2.6% | ▲+22% Added · +830K sh | |
| 8 | Palantir Technologies Inc CL A | $396.2M | 2.71M | 2.4% | ▲+6.0% Added · +153K sh | |
| 9 | Berkshire Hathaway Inc Del CL B NEW | $366.7M | 765.3K | 2.2% | ▲+26% Added · +160K sh | |
| 10 | Advanced Micro Devices Inc COM | $330.1M | 1.62M | 2.0% | ▼−31% Reduced · −727K sh | |
| 11 | PG&E Corp NOTE 4.250%12/0 | $274.5M | 263.89M | 1.7% | ▲+0.7% Added · +1.8M sh | |
| 12 | Alibaba Group Hldg Ltd NOTE 0.500% 6/0 | $270.2M | 194.50M | 1.6% | ▼−4.4% Reduced · −9.0M sh | |
| 13 | Microsoft Corp COM | $270.0M | 729.4K | 1.6% | ▼−13% Reduced · −106K sh | |
| 14 | Transocean Inc DEB 4.625% 9/3 | $265.9M | 131.24M | 1.6% | ▲+6.1% Added · +7.6M sh | |
| 15 | Taiwan Semiconductor Manufac SPONSORED ADS | $242.2M | 716.7K | 1.5% | ▲+236% Added · +503K sh | |
| 16 | Unitedhealth Group Inc COM | $189.4M | 700.0K | 1.1% | ▲New New position | |
| 17 | Micron Technology Inc COM | $168.9M | 500.1K | 1.0% | ▲New New position | |
| 18 | State STR SPDR S&P 500 ETF T TR UNIT | $164.9M | 253.5K | 1.0% | ▲+92% Added · +121K sh | |
| 19 | Bofa Fin LLC MTNF 0.600% 5/2 | $156.3M | 130.31M | 0.9% | ▲+55% Added · +46.0M sh | |
| 20 | Broadcom Inc COM | $154.8M | 500.0K | 0.9% | ▼−8.2% Reduced · −45K sh | |
| 21 | Electronic Arts Inc COM | $148.6M | 728.7K | 0.9% | ▲+83% Added · +331K sh | |
| 22 | Uniti Group LLC NOTE 7.500%12/0 | $136.4M | 117.12M | 0.8% | ▼−2.5% Reduced · −3.0M sh | |
| 23 | Warner Bros Discovery Inc COM SER A | $131.6M | 4.79M | 0.8% | ▲106× Added · +4.7M sh | |
| 24 | Oracle Corp COM | $123.9M | 842.5K | 0.7% | ▲40× Added · +822K sh | |
| 25 | Dollar Tree Inc COM | $123.6M | 1.13M | 0.7% | ▲+14% Added · +140K sh | |
| 26 | Norfolk Southn Corp COM | $118.4M | 412.6K | 0.7% | ▲+23% Added · +77K sh | |
| 27 | Penumbra Inc COM | $114.6M | 349.0K | 0.7% | ▲New New position | |
| 28 | Shopify Inc CL A SUB VTG SHS | $112.7M | 950.0K | 0.7% | ▲+2.6% Added · +24K sh | |
| 29 | Disney Walt Co COM | $106.0M | 1.10M | 0.6% | ▼−2.4% Reduced · −27K sh | |
| 30 | Adobe Inc COM | $104.2M | 428.5K | 0.6% | ▲+48% Added · +139K sh | |
| 31 | Arista Networks Inc COM SHS | $96.6M | 786.5K | 0.6% | ▼~0% Reduced · −16 sh | |
| 32 | Alphabet Inc CAP STK CL A | $89.9M | 312.7K | 0.5% | ▼−69% Reduced · −690K sh | |
| 33 | Integer Hldgs Corp COM | $88.0M | 1.00M | 0.5% | ▲New New position | |
| 34 | Intel Corp COM | $84.8M | 1.92M | 0.5% | ▲+42% Added · +565K sh | |
| 35 | Ishares TR RUSSELL 2000 ETF | $84.5M | 340.8K | 0.5% | ▲+51% Added · +116K sh | |
| 36 | Webster Finl Corp COM | $83.3M | 1.20M | 0.5% | ▲New New position | |
| 37 | Vistance Networks Inc COM | $78.0M | 4.28M | 0.5% | ▲+91% Added · +2.0M sh | |
| 38 | Peabody Engr Corp COM | $73.8M | 2.24M | 0.4% | ▲+5.5% Added · +116K sh | |
| 39 | Avis Budget Group Inc COM | $72.9M | 500.0K | 0.4% | ▲+100% Added · +250K sh | |
| 40 | Ishares Bitcoin Trust ETF SHS BEN INT | $72.2M | 1.88M | 0.4% | ▲+65% Added · +738K sh | |
| 41 | Kenvue Inc COM | $70.4M | 4.08M | 0.4% | ▲+219% Added · +2.8M sh | |
| 42 | Citigroup Inc COM NEW | $63.9M | 563.2K | 0.4% | ▲+60% Added · +211K sh | |
| 43 | Eli Lilly & Co COM | $61.6M | 67.0K | 0.4% | ▲+167% Added · +42K sh | |
| 44 | Neogen Corp COM | $60.4M | 6.50M | 0.4% | ▲~0% Added · +180 sh | |
| 45 | Entergy Corp New COM | $59.4M | 528.6K | 0.4% | ▲+25% Added · +107K sh | |
| 46 | Masimo Corp COM | $58.8M | 330.7K | 0.4% | ▲New New position | |
| 47 | JPMorgan Chase & Co COM | $58.2M | 197.8K | 0.3% | ▲+155% Added · +120K sh | |
| 48 | American Healthcare REIT Inc COM SHS | $56.4M | 1.20M | 0.3% | ▼−22% Reduced · −346K sh | |
| 49 | Sempra COM | $55.6M | 571.8K | 0.3% | ▲+11% Added · +55K sh | |
| 50 | Chevron Corporation COM | $55.4M | 267.7K | 0.3% | ▲New New position |
The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This fund page is the Follow view. The Build view lets your agent pull holdings, quarter changes, overlap, and source filings through API or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/1393825/holdings"
Use Arkolith to show Hudson Bay Capital Management LP's latest holdings, largest changes, and filing provenance.
Put / call positions from the 13F — totals include every disclosed option leg
| Type | Underlying | Notional value | Underlying shares |
|---|---|---|---|
| PUT · bearish | NVIDIA CORPNVDA | $1.2B | 6.9M |
| PUT · bearish | TESLA INCTSLA | $949.3M | 2.6M |
| PUT · bearish | AMAZON.COM INCAMZN | $898.1M | 4.3M |
| PUT · bearish | ISHARES RUSSELL 2000 ETFIWM | $872.3M | 3.5M |
| PUT · bearish | SS SPDR S&P 500 ETF TRUST-USSPY | $605.5M | 931K |
| PUT · bearish | PALANTIR TECHNOLOGIES INC-APLTR | $585.1M | 4.0M |
| PUT · bearish | NETFLIX INCNFLX | $567.3M | 5.9M |
| PUT · bearish | APPLE INCAAPL | $549.2M | 2.2M |
| PUT · bearish | ADVANCED MICRO DEVICESAMD | $489.8M | 2.4M |
| PUT · bearish | BERKSHIRE HATHAWAY INC-CL BBRK/B | $383.4M | 800K |
| PUT · bearish | MICROSOFT CORPMSFT | $268.4M | 725K |
| PUT · bearish | ISHR IBX USD HIYLD CB ETF-UIHYG | $238.7M | 3.0M |
| PUT · bearish | TAIWAN SEMICONDUCTOR-SP ADRTSM | $226.4M | 670K |
| PUT · bearish | DOLLAR TREE INCDLTR | $219.0M | 2.0M |
| CALL · bullish | NVIDIA CORPNVDA | $216.5M | 1.2M |
| PUT · bearish | UNITEDHEALTH GROUP INCUNH | $189.4M | 700K |
| PUT · bearish | SPDR GOLD SHARESGLD | $173.6M | 403K |
| PUT · bearish | MICRON TECHNOLOGY INCMU | $168.9M | 500K |
| CALL · bullish | AMAZON.COM INCAMZN | $156.5M | 751K |
| PUT · bearish | BROADCOM INCAVGO | $154.8M | 500K |
| CALL · bullish | TESLA INCTSLA | $134.5M | 362K |
| PUT · bearish | ELECTRONIC ARTS INCEA | $133.9M | 657K |
| PUT · bearish | ORACLE CORPORCL | $133.9M | 910K |
| PUT · bearish | SHOPIFY INC - CLASS ASHOP | $130.5M | 1.1M |
| PUT · bearish | ISHARES BITCOIN TRUST ETFIBIT | $126.9M | 3.3M |
13F filers disclose option positions at the market value of the underlying the contracts reference, not the premium paid. A put is a bearish bet (it gains if the stock falls); a call is bullish. “Underlying shares” is the share count the contracts control, not a share holding. These legs are excluded from the equity book, weighting, concentration and sector figures above. Showing the largest 25 of 117 option legs.
As-of date vs the date the SEC received each filing
| Quarter | As of | Filed | Positions | Value | Form |
|---|---|---|---|---|---|
| Q1 2026 | Mar 31, 2026 | May 13, 2026 | 1,607 | $29.0B | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 13, 2026 | 1,279 | $30.3B | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Dec 15, 2025 | 1,517 | $30.1B | 13F-HR/A |
| Q2 2025 | Jun 30, 2025 | Aug 18, 2025 | 1,443 | $29.4B | 13F-HR/A |
| Q1 2025 | Mar 31, 2025 | May 14, 2025 | 1,339 | $32.4B | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Feb 14, 2025 | 946 | $28.4B | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 13, 2024 | 865 | $24.7B | 13F-HR |
| Q2 2024 | Jun 30, 2024 | Aug 14, 2024 | 787 | $21.3B | 13F-HR |
| Q1 2024 | Mar 31, 2024 | May 15, 2024 | 739 | $18.0B | 13F-HR |
| Q4 2023 | Dec 31, 2023 | Feb 14, 2024 | 712 | $15.8B | 13F-HR |
| Q3 2023 | Sep 30, 2023 | Dec 7, 2023 | 801 | $12.7B | 13F-HR/A |
| Q2 2023 | Jun 30, 2023 | Aug 14, 2023 | 851 | $13.8B | 13F-HR |
| Q1 2023 | Mar 31, 2023 | May 16, 2023 | 854 | $12.1B | 13F-HR/A |
| Q4 2022 | Dec 31, 2022 | Feb 14, 2023 | 986 | $9.8B | 13F-HR |
| Q3 2022 | Sep 30, 2022 | Nov 14, 2022 | 1,231 | $11.3B | 13F-HR |
| Q2 2022 | Jun 30, 2022 | Aug 12, 2022 | 1,329 | $13.2B | 13F-HR |
| Q1 2022 | Mar 31, 2022 | May 16, 2022 | 1,186 | $7.4B | 13F-HR |
| Q4 2021 | Dec 31, 2021 | Feb 14, 2022 | 1,085 | $9.8B | 13F-HR |
| Q3 2021 | Sep 30, 2021 | Dec 29, 2021 | 991 | $7.4B | 13F-HR/A |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. The performance line is a simulation of the disclosed long book, not an audited return.