Hudson Bay Capital Management portfolio
Investment firmPortfolio as of Jun 30, 2026 (Q2 2026) · filed with the SEC on Aug 14, 2026 · data updated on Nov 5, 2026 · Q2 2026 13F (filing) ↗ · all its 13F filings ↗
A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.
Hudson Bay Capital Management reported a $19.3 bn portfolio of 1,052 companies (1,195 positions, counting each share class separately) to the SEC as of the end of Q2 2026. Its largest positions are AMZN, TSM, TSLA. During the quarter it opened Sandisk.
Sections with a free account
What it reported after the quarter end (Q2 2026)
The 13F shows the portfolio as of Jun 30, 2026. Since then Hudson Bay Capital Management has filed these own trades with the SEC (Form 4, when it owns more than 10% of a company or holds a role in it) and stakes above 5% (13D and 13G). It is not everything it did: only what it must report before the next 13F.
Stake reported in the company · event of Oct 31, 2026 · filed Nov 3, 2026 · filing ↗
- 13GGSR V Acquisition6.1 %
Stake reported in the company · event of Jun 30, 2026 · filed Aug 10, 2026 · filing ↗
Stake reported in the company · event of Jun 30, 2026 · filed Aug 10, 2026 · filing ↗
Stake reported in the company · event of Jun 30, 2026 · filed Aug 10, 2026 · filing ↗
Stake reported in the company · event of Jun 30, 2026 · filed Aug 7, 2026 · filing ↗
Stake reported in the company · event of Jun 30, 2026 · filed Aug 7, 2026 · filing ↗
Stake reported in the company · event of Jun 30, 2026 · filed Aug 7, 2026 · filing ↗
Stake reported in the company · event of Jun 30, 2026 · filed Jul 2, 2026 · filing ↗
What changed this quarter
1188 positions with a change (272 new, 235 added to, 268 trimmed, 413 sold); also, 53 entered through an IPO, 30 exited through an acquisition or merger, 65 entered through a spin-off. 12 are listed here: those of 0.5 points of the portfolio or more (up to 12).
- Newly listedSpace Exploration TechnologiesSPCX1.4% of the portfolio
It started trading this quarter: it appears in a 13F for the first time. The filing does not say whether the manager already held it before the listing, so it is not counted as a purchase.
- Sandisk+3.6 ppof portfolioNew— → 3.6%
- Alphabet+3.4 ppof portfolioIncreased0.6% → 4.0%
- Taiwan Semiconductor Manufacturing+170%more sharesIncreased1.6% → 4.8%
- Apple−69%fewer sharesReduced3.5% → 0.9%
- Flagstar Bank, National Association−72%fewer sharesReduced3.1% → 0.8%
- Palantir Technologies+108%more sharesIncreased2.6% → 3.4%
- Advanced Micro Devices−58%fewer sharesReduced2.2% → 2.1%
- Amazon.com+40%more sharesIncreased4.1% → 5.1%
- NVIDIA−25%fewer sharesReduced6.1% → 4.1%
- Meta Platforms+869%more sharesIncreased0.2% → 1.5%
- UnitedHealth Group−64%fewer sharesReduced1.3% → 0.5%
- Synopsys+945%more sharesIncreased0.1% → 1.0%
The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight: what it bought or sold, excluding price effects.
Top holdings
- Amazon.comAMZN5.1%
- Taiwan Semiconductor ManufacturingTSM4.8%
- TeslaTSLA4.5%
- AlphabetGOOGL · GOOG4.2%
- NVIDIANVDA4.1%
- SandiskSNDK3.6%
- Palantir TechnologiesPLTR3.4%
- Berkshire HathawayBRK/B2.1%
- Advanced Micro DevicesAMD2.1%
- MicrosoftMSFT2.0%
- Meta PlatformsMETA1.5%
- IntelINTC1.4%
- Space Exploration TechnologiesSPCX1.4%
- NetflixNFLX1.1%
- SynopsysSNPS1.0%
Portfolio by sector
- ● Information Technology 30%
- ● Consumer Discretionary 13%
- ● Communication Services 10%
- ● Health Care 9%
- ● Financials 9%
- ● Industrials 8%
- ● SPAC / vehículos 5%
- ● Real Estate 5%
- ● No sector 4%
- ● Utilities 4%
- ● Consumer Staples 2%
- ● Energy 1%
- ● Materials 1%
13F filings with amendments or confidential positions
- 13F Q3 2025 ↗filed Nov 13, 2025Amendment of Dec 15, 2025 (replaces the original) ↗
- 13F Q2 2025 ↗filed Aug 14, 2025Amendment of Aug 18, 2025 (replaces the original) ↗
Declared options (25)
Besides stocks, Hudson Bay Capital Management declared 23 puts (they gain if the stock falls) and 2 calls (they gain if it rises) with a notional of $15.5 bn. The 13F reports the value of the underlying shares, not the premium paid, so these figures look large and are not added to the portfolio. Nor does it say whether the option is bought or written, or its strike or expiry: it may be a hedge.
- PUTTeslaTSLA$1.2 bn
- PUTAmazon.comAMZN$1.1 bn
- PUTNVIDIANVDA$942M
- PUTiShares Russell 2000 ETFIWM$935M
- PUTTaiwan Semiconductor ManufacturingTSM$931M
- PUTAdvanced Micro DevicesAMD$820M
- PUTPalantir TechnologiesPLTR$758M
- PUTSandiskSNDKnew this quarter$693M
- PUTState Str Spdr S&P 500 ETF TSPY$569M
- PUTAlphabetGOOGL$531M
- PUTBerkshire HathawayBRK/B$460M
- PUTMicrosoftMSFT$375M
Stakes above 5% (13D/13G)
Companies where this filer reported holding 5% or more of the shares. It is the figure from its latest filing on each one; history since December 2024.
How we classify it
Not counted as a concentrated manager: its portfolio is not within 5 to 100 positions; its top 10 positions are under 45%; more than 20% is options. Its portfolio is shown all the same, but it is left out of manager counts, the consensus and the ranking. How this is decided
Similar managers by type and size
Same type of filer and a 13F portfolio value between a third and three times this one. It is not a comparison of what they hold.
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