DOSSIER · 13F-HR · Q1 2026

Hudson Bay Capital Management LP

$29.0B in tracked AUM across 1,607 positions as of Q1 2026.

HB
CIK 0001393825 · last filed Mar 31, 2026
Total AUM
$29.0B
as of Q1 2026
Holdings
1,607
positions
Whale Score
64
64
tracked
Activity
no data
changes this Q
AI Analysis · Q1 2026
Comprehensive Analysis of Hudson Bay Capital Management LP 13F Filing
Portfolio Overview

Hudson Bay Capital Management LP reported a total portfolio value of $30.08 billion as of September 30, 2025, representing a modest increase of +2.2% from the previous quarter's $29.44 billion. The portfolio is highly diversified, encompassing 1,517 total holdings. This broad array of positions suggests a multi-strategy approach, likely involving a mix of long-only equity positions, hedging...

Key Holdings

The portfolio is dominated by mega-cap technology leaders, which serve as the primary anchors. NVIDIA Corporation (NVDA) remains the largest holding with a value of $2.69 billion, comprising 8.93% of the portfolio, despite a reduction in shares during the quarter. Tesla Inc (TSLA) and Amazon.com Inc (AMZN) follow closely as the second and third largest positions, representing 6.54% and 6.51% of the portfolio, respectively.

A notable feature of the top holdings is the significant allocation to ETFs and financial innovation. The SPDR S&P 500 ETF (SPY) and the iShares Russell 2000 ETF (IWM) hold prominent positions, suggesting the firm utilizes broad market exposure for liquidity or beta management. Furthermore, the inclusion of the iShares Bitcoin Trust (IBIT) and Strategy Inc (MSTR)—formerly MicroStrategy—in the top 12 highlights a substantial bet on digital assets, totaling nearly 4% of the portfolio between the two. Financial services also play a key role, with Robinhood Markets (HOOD) and Berkshire Hathaway (BRK/B) appearing in the top ten.

Analysis generated by 13F Insight from SEC Form 13F filing data · Q1 2026. Methodology

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
NVDA
NVIDIA CORPORATION
$2.3B13.4M8.1%
02
TSLA
TESLA INC
$1.8B4.8M6.2%
03
AMZN
AMAZON COM INC
$1.7B8.0M5.8%
04
AAPL
APPLE INC
$1.1B4.5M3.9%
05
PLTR
PALANTIR TECHNOLOGIES INC
$1.1B7.5M3.8%
06
NFLX
NETFLIX INC.
$1.1B11.0M3.7%
07
IWM
ISHARES TR
$1.0B4.1M3.5%
08
AMD
ADVANCED MICRO DEVICES INC
$903M4.4M3.1%
09
SPY
STATE STR SPDR S&P 500 ETF T
$835M1.3M2.9%
10
BRK/B
BERKSHIRE HATHAWAY INC DEL
$750M1.6M2.6%

Filing history

2026Q1Mar 31
$29.0B 4.5%
1,607 positionsView →
2025Q4Dec 31
$30.3B 0.9%
1,279 positionsView →
2025Q3Sep 30
$30.1B 2.2%
1,517 positionsView →
2025Q2Jun 30
$29.4B 83.3%
1,444 positionsLocked
2025Q1Mar 31
$16.1B 43.5%
755 positionsLocked
2024Q4Dec 31
$28.4B 15.0%
946 positionsLocked
2024Q3Sep 30
$24.7B 16.3%
865 positionsLocked
2024Q2Jun 30
$21.3B 17.9%
787 positionsLocked
2024Q1Mar 31
$18.0B 14.3%
739 positionsLocked
2023Q4Dec 31
$15.8B 23.9%
712 positionsLocked
2023Q3Sep 30
$12.7B 7.4%
801 positionsLocked
2023Q2Jun 30
$13.8B 13.2%
851 positionsLocked
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