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Hudson Bay Capital Management

Hudson Bay Capital Management Portfolio holdings

AUM $29B
1-Year Est. Return 30.2%
This Fund
S&P 500
This Quarter Est. Return
+3.26%
1 Year Est. Return
+30.2%
3 Year Est. Return
+99.99%
5 Year Est. Return
+135.78%
10 Year Est. Return
+498.47%
AUM
$30.3B
AUM Growth
+$259M
Cap. Flow
+$4.21M
Cap. Flow %
0.01%
Top 10 Hldgs %
25.78%
Holding
1,635
New
443
Increased
264
Reduced
288
Closed
475

Top Buys

Rank Stock Value
1
PLTR icon
Palantir
PLTR
+$412M
2
MSFT icon
Microsoft
MSFT
+$384M
3
NFLX icon
Netflix
NFLX
+$293M
4
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$253M
5
AVGO icon
Broadcom
AVGO
+$190M

Top Sells

Rank Stock Value
1
AMZN icon
Amazon
AMZN
+$421M
2
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$172M
3
TSM icon
TSMC
TSM
+$149M
4
K
Kellanova
K
+$100M
5
UNH icon
UnitedHealth
UNH
+$86.3M

Sector Composition

Rank Sector Weight
1 Technology 14.06%
2 Financials 8.07%
3 Consumer Discretionary 6.89%
4 Healthcare 5.17%
5 Communication Services 4.66%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ZLAB icon
726
Zai Lab
ZLAB
$2.86B
$1.59M 0.01%
+90,000
New +$2.11M
MOS icon
727
CALL
The Mosaic Company
MOS
$7.18B
$1.57M 0.01%
+65,000
New +$1.75M
HYMC icon
728
Hycroft Mining Holding Corp
HYMC
$2.56B
$1.56M 0.01%
+65,676
New +$727K
FAC
729
Factorial Energy Inc
FAC
$627M
$1.55M 0.01%
150,300
-93,658
-38% -$950K
JBTM
730
JBT Marel
JBTM
$6.15B
$1.55M 0.01%
10,256
-40,403
-80% -$5.7M
PALI icon
731
Palisade Bio
PALI
$342M
$1.54M 0.01%
+656,460
New +$1.26M
IPEX
732
Inflection Point Acquisition Corp V
IPEX
$127M
$1.54M 0.01%
150,000
– –
ABOS icon
733
Acumen Pharmaceuticals
ABOS
$181M
$1.53M 0.01%
725,000
-4
-0% -$8
MCGA
734
Yorkville Acquisition Corp
MCGA
$243M
$1.52M 0.01%
150,000
– –
JANX icon
735
Janux Therapeutics
JANX
$1.02B
$1.52M 0.01%
110,000
+60,000
+120% +$1.41M
GTERA
736
Globa Terra Acquisition Corp
GTERA
$246M
$1.51M 0.01%
150,000
– –
APP icon
737
Applovin
APP
$102B
$1.51M 0.01%
+2,247
New +$1.42M
AXIN
738
Axiom Intelligence Acquisition Corp 1
AXIN
$281M
$1.51M 0.01%
150,000
– –
QCOM icon
739
Qualcomm
QCOM
$171B
$1.5M ﹤0.01%
8,775
-156,553
-95% -$26.8M
REPL icon
740
Replimune Group
REPL
$1.28B
$1.49M ﹤0.01%
+153,650
New +$1.31M
HBM icon
741
Hudbay
HBM
$12.4B
$1.49M ﹤0.01%
+75,000
New +$1.27M
RDAG
742
Republic Digital Acquisition Co
RDAG
$389M
$1.48M ﹤0.01%
146,580
– –
MRTN icon
743
Marten Transport
MRTN
$1.22B
$1.48M ﹤0.01%
130,312
+33,739
+35% +$358K
CEG icon
744
Constellation Energy
CEG
$98.7B
$1.46M ﹤0.01%
4,125
-20,660
-83% -$7.51M
SM icon
745
SM Energy
SM
$7.71B
$1.45M ﹤0.01%
+77,520
New +$1.57M
HNRG icon
746
Hallador Energy
HNRG
$743M
$1.44M ﹤0.01%
75,430
-4,119
-5% -$83.5K
RKLB icon
747
Rocket Lab Corp
RKLB
$51.9B
$1.41M ﹤0.01%
20,176
-109,421
-84% -$6.27M
UTZ icon
748
Utz Brands
UTZ
$1.25B
$1.4M ﹤0.01%
135,353
+84,623
+167% +$913K
AUPH icon
749
Aurinia Pharmaceuticals
AUPH
$2.06B
$1.36M ﹤0.01%
85,000
+782
+0.9% +$11.1K
MTZ icon
750
MasTec
MTZ
$22.6B
$1.32M ﹤0.01%
+6,063
New +$1.27M
28 29
30
31 32

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Hudson Bay Capital Management's Q4 2025 Portfolio in Review

As of Q4 2025, Hudson Bay Capital Management held 1,635 positions worth $30.3B, up 0.86% from $30.1B the previous quarter. Its ten largest holdings account for 26% of the portfolio.

Hudson Bay Capital Management's Q4 2025 filing shows 443 new, 264 increased, 288 reduced and 475 closed positions. Its largest new stake was Vertiv: 964,604 shares worth $156M. The largest sale was Amazon, an estimated $421M.

By sector, the portfolio is most concentrated in Technology at 14% of assets, up from 11% a quarter earlier, followed by Financials and Consumer Discretionary.

  • Hudson Bay Capital Management's largest Q4 2025 buy was Vertiv: 964,604 shares worth $156M.
  • Hudson Bay Capital Management added most to Palantir in Q4 2025, an estimated $412M increase.
  • Hudson Bay Capital Management's biggest Q4 2025 reduction was Amazon, cutting an estimated $421M.
  • Hudson Bay Capital Management fully exited Kellanova in Q4 2025, selling an estimated $100M.
  • Hudson Bay Capital Management's ten largest holdings make up 26% of its $30.3B portfolio in Q4 2025.
  • Hudson Bay Capital Management opened 443 new positions and closed 475 in Q4 2025.
  • Hudson Bay Capital Management's portfolio value rose 0.86% quarter-over-quarter to $30.3B.

Based on Hudson Bay Capital Management's 13F filing for Q4 2025, filed 13 Feb 2026.