What Hudson Bay Capital Management LP changed, 2013 to 2026
53 quarterly 13F filings, from Q2 2013 to Q2 2026, each read from the filing itself. A quarter is compared only with the quarter before it, so a quarter with no filing is a gap in the record, not a sale.
Reported book
$36.8bn
$1.9bn at Q2 2013
Positions
1,335
148 at Q2 2013
Top ten weight
26%
35% at Q2 2013
Typical quarterly turnover
about 34%
Estimated from share changes
- Q2 2013: $1.9bn
- Q3 2013: $2.7bn
- Q4 2013: $2.5bn
- Q1 2014: $3.7bn
- Q2 2014: $3.2bn
- Q3 2014: $3.5bn
- Q4 2014: $4.3bn
- Q1 2015: $3.8bn
- Q2 2015: $3.4bn
- Q3 2015: $2.3bn
- Q4 2015: $1.8bn
- Q1 2016: $2.1bn
- Q2 2016: $3.2bn
- Q3 2016: $4.1bn
- Q4 2016: $4.8bn
- Q1 2017: $7.4bn
- Q2 2017: $5.0bn
- Q3 2017: $4.0bn
- Q4 2017: $4.7bn
- Q1 2018: $4.8bn
- Q2 2018: $7.1bn
- Q3 2018: $8.1bn
- Q4 2018: $7.5bn
- Q1 2019: $7.8bn
- Q2 2019: $4.4bn
- Q3 2019: $3.6bn
- Q4 2019: $4.5bn
- Q1 2020: $4.0bn
- Q2 2020: $5.7bn
- Q3 2020: $6.7bn
- Q4 2020: $9.3bn
- Q1 2021: $8.1bn
- Q2 2021: $8.3bn
- Q3 2021: $7.4bn
- Q4 2021: $9.8bn
- Q1 2022: $7.4bn
- Q2 2022: $13.2bn
- Q3 2022: $11.3bn
- Q4 2022: $9.8bn
- Q1 2023: $12.1bn
- Q2 2023: $13.8bn
- Q3 2023: $12.7bn
- Q4 2023: $15.8bn
- Q1 2024: $18.0bn
- Q2 2024: $21.3bn
- Q3 2024: $24.7bn
- Q4 2024: $28.4bn
- Q1 2025: $32.4bn
- Q2 2025: $29.4bn
- Q3 2025: $30.1bn
- Q4 2025: $30.3bn
- Q1 2026: $29.0bn
- Q2 2026: $36.8bn
- Q2 2013: 35%
- Q3 2013: 39%
- Q4 2013: 38%
- Q1 2014: 40%
- Q2 2014: 36%
- Q3 2014: 42%
- Q4 2014: 47%
- Q1 2015: 44%
- Q2 2015: 37%
- Q3 2015: 42%
- Q4 2015: 47%
- Q1 2016: 65%
- Q2 2016: 52%
- Q3 2016: 40%
- Q4 2016: 32%
- Q1 2017: 26%
- Q2 2017: 31%
- Q3 2017: 41%
- Q4 2017: 44%
- Q1 2018: 24%
- Q2 2018: 25%
- Q3 2018: 30%
- Q4 2018: 28%
- Q1 2019: 29%
- Q2 2019: 38%
- Q3 2019: 39%
- Q4 2019: 40%
- Q1 2020: 43%
- Q2 2020: 43%
- Q3 2020: 42%
- Q4 2020: 53%
- Q1 2021: 39%
- Q2 2021: 23%
- Q3 2021: 24%
- Q4 2021: 30%
- Q1 2022: 19%
- Q2 2022: 27%
- Q3 2022: 26%
- Q4 2022: 20%
- Q1 2023: 24%
- Q2 2023: 23%
- Q3 2023: 37%
- Q4 2023: 35%
- Q1 2024: 38%
- Q2 2024: 37%
- Q3 2024: 31%
- Q4 2024: 25%
- Q1 2025: 24%
- Q2 2025: 28%
- Q3 2025: 29%
- Q4 2025: 26%
- Q1 2026: 27%
- Q2 2026: 26%
The positions that defined it
Every position that was ever among the 25 largest: when it first appeared, when it was largest, and where it stands in Q2 2026. The line is its reported value each quarter.
| Position | Value over time | First listed | Largest | Q2 2026 |
|---|---|---|---|---|
| Tesla Motors Inc(TSLA) | Q2 2022 | $1.4bnQ4 2025 | $1.2bn | |
| Amazon Com Inc(AMZN) | Q2 2022 | $1.1bnQ2 2026 | $1.1bn | |
| Amazon Com Inc(AMZN) | Q4 2014 | $982mQ2 2026 | $982m | |
| Nvidia Corp(NVDA) | Q2 2022 | $1.3bnQ3 2025 | $942m | |
| iShares Russell 2000 ETF(IWM) | Q3 2021 | $935mQ2 2026 | $935m | |
| Taiwan Semiconductor MFG LTD(TSM)Sponsored ADS | Q3 2021 | $931mQ2 2026 | $931m | |
| Taiwan Semiconductor MFG LTD(TSM)Sponsored ADS | Q3 2022 | $923mQ2 2026 | $923m | |
| Tesla Motors Inc(TSLA) | Q4 2016 | $864mQ2 2026 | $864m | |
| Adv Micro Dev STK(AMD) | Q4 2021 | $820mQ2 2026 | $820m | |
| Nvidia Corp(NVDA) | Q3 2016 | $1.3bnQ3 2024 | $786m | |
| Palantir Technologies Inc(PLTR)Class A | Q1 2023 | $758mQ2 2026 | $758m | |
| SanDisk Corp(SNDK) | Q2 2026 | $696mQ2 2026 | $696m | |
| Tesla IncNote 2.000% 5/1 | Q3 2019 | $1.9bnQ4 2020 | Soldlast listed Q1 2021 | |
| Tesla MTRS IncPUT | Q2 2016 | $1.6bnQ4 2020 | Soldlast listed Q2 2021 | |
| Activision Blizzard Inc | Q2 2018 | $685mQ3 2023 | Soldlast listed Q3 2023 | |
| Royal Caribbean GroupNote 6.000% 8/1 | Q3 2023 | $578mQ4 2024 | Soldlast listed Q4 2024 | |
| Altaba Inc | Q2 2017 | $501mQ4 2017 | Soldlast listed Q3 2019 | |
| Nvidia CorpNote 1.000%12/0 | Q4 2015 | $494mQ4 2016 | Soldlast listed Q4 2016 | |
| Intercontinentalexchange Gro(ICE) | Q3 2023 | $473mQ3 2023 | Soldlast listed Q4 2023 | |
| Alibaba Group HLDG LTD | Q1 2016 | $459mQ1 2016 | Below the listed rangelast listed Q1 2016 |
Quarter by quarter
Q2 2015: $3.4bn across 222 positions
Against Q1 2015: 145 new, 36 added to, 27 trimmed, 87 sold out, across all 222 positions.
Turnover about 53% of the book, estimated from share changes at quarter-end prices.
Largest additions
- iShares PUT+$154m
- Xpo Logistics Inc (XPO)+$80m
- Yahoo Inc+$35m
- Spdr PUT+$33m
- iShares RUS 1000 VAL ETF (IWD)+$21m
- Staples Inc+$18m
- Sunedison Inc+$13m
- Zoetis Inc (ZTS)+$8.8m
Largest reductions
- Spdr S&P 500 PUT-$96m
- Alibaba Group HLDG LTD (BABA)-$38m
- Anadarko Pete Corp-$21m
- Dish Network Corp-$18m
- Hertz Global Holdings Inc-$17m
- Directv-$13m
- Gulfport Energy Corp-$8.1m
- Gulfport Energy Corp-$7.5m
Opened
- Mgic Invt Corp Wis$172m
- Sunedison Inc$86m
- Dish Network Corp$80m
- Electronic Arts Inc$75m
- Chesapeake Energy Corp$74m
- Micron Technology Inc$72m
- Amag Pharmaceuticals Inc$64m
- Chesapeake Energy Corp$49m
Sold out
- Salix Pharmaceuticals Incwas $225m
- Radian Group Incwas $216m
- Micron Technology Incwas $183m
- PHH Corpwas $138m
- Pharmacyclics Incwas $83m
- Time Warner Cable Incwas $75m
- Sunedison Incwas $66m
- Rite Aid Corpwas $56m
Largest positions, Q2 2015
The largest 25 of 222 reported positions.
| Position | Value | Weight | On the quarter |
|---|---|---|---|
| Alibaba Group HLDG LTD | $226m | 6.7% | Added |
| iShares PUT | $189m | 5.6% | Added |
| Yahoo Inc | $179m | 5.3% | Added |
| Mgic Invt Corp Wis | $172m | 5.1% | New |
| Xpo Logistics Inc (XPO) | $91m | 2.7% | Added |
| Sunedison Inc | $86m | 2.5% | New |
| Alibaba Group HLDG LTD (BABA) | $85m | 2.5% | Trimmed |
| Dish Network Corp | $80m | 2.4% | New |
| Electronic Arts Inc | $75m | 2.2% | New |
| Anadarko Pete Corp | $74m | 2.2% | Trimmed |
| Chesapeake Energy Corp | $74m | 2.2% | New |
| Micron Technology Inc | $72m | 2.1% | New |
| Staples Inc | $64m | 1.9% | Added |
| Amag Pharmaceuticals Inc | $64m | 1.9% | New |
| Spdr PUT | $54m | 1.6% | Added |
| Spdr S&P 500 PUT | $51m | 1.5% | Trimmed |
| Chesapeake Energy Corp | $49m | 1.5% | New |
| Starwood Ppty TR Inc | $40m | 1.2% | New |
| Chesapeake Energy Corp | $37m | 1.1% | New |
| iShares RUS 1000 VAL ETF (IWD) | $36m | 1.1% | Added |
| Mgic Invt Corp Wis | $35m | 1.1% | New |
| Zoetis Inc (ZTS) | $35m | 1.0% | Added |
| Office Depot Inc | $33m | 1.0% | Added |
| Jetblue Airways Corp | $33m | 1.0% | New |
| Allergan PLC | $32m | 1.0% | New |
The books most like this one
Among the managers whose filings are on file, at Q2 2026. Overlap is the share of the two books that is the same: for every stock both list, the smaller of its two weights, added up. Two books can overlap because both own the largest companies; it says nothing about whether the managers agree.
| Manager | Overlap | Stocks in both | Overlap over time | |
|---|---|---|---|---|
| Invesco Ltd | at least 25% | 155 | Compare | |
| T. Rowe Price Associates Inc | at least 22% | 136 | Compare | |
| Fidelity (FMR LLC) | at least 22% | 133 | Compare | |
| Capital World Investors | at least 22% | 120 | Compare | |
| Woodline Partners LP | at least 21% | 145 | Compare | |
| Neuberger Berman Group LLC | at least 21% | 144 | Compare | |
| Wellington Management Group LLP | at least 21% | 135 | Compare | |
| AllianceBernstein LP | at least 20% | 140 | Compare |
“At least” where either manager has more positions than are read each quarter: a stock both hold below that range is not counted.
The filings behind it
Every quarter above is one 13F holdings report, with any amendment the filer made to it applied in the order it was filed. Where the reporting entity changed, each quarter keeps the filer that actually reported it.
| Quarter | Filer | Book | Amended | Filing |
|---|---|---|---|---|
| Q2 2026 | Hudson Bay Capital Management LP | $36.8bn | 13F-HR | |
| Q1 2026 | Hudson Bay Capital Management LP | $29.0bn | 13F-HR | |
| Q4 2025 | Hudson Bay Capital Management LP | $30.3bn | 13F-HR | |
| Q3 2025 | Hudson Bay Capital Management LP | $30.1bn | 13F-HR | |
| Q2 2025 | Hudson Bay Capital Management LP | $29.4bn | 13F-HR | |
| Q1 2025 | Hudson Bay Capital Management LP | $32.4bn | 13F-HR | |
| Q4 2024 | Hudson Bay Capital Management LP | $28.4bn | 13F-HR | |
| Q3 2024 | Hudson Bay Capital Management LP | $24.7bn | 13F-HR | |
| Q2 2024 | Hudson Bay Capital Management LP | $21.3bn | 13F-HR | |
| Q1 2024 | Hudson Bay Capital Management LP | $18.0bn | 13F-HR | |
| Q4 2023 | Hudson Bay Capital Management LP | $15.8bn | 13F-HR | |
| Q3 2023 | Hudson Bay Capital Management LP | $12.7bn | 1 | 13F-HR |
| Q2 2023 | Hudson Bay Capital Management LP | $13.8bn | 13F-HR | |
| Q1 2023 | Hudson Bay Capital Management LP | $12.1bn | 1 | 13F-HR |
| Q4 2022 | Hudson Bay Capital Management LP | $9.8bn | 13F-HR | |
| Q3 2022 | Hudson Bay Capital Management LP | $11.3bn | 13F-HR | |
| Q2 2022 | Hudson Bay Capital Management LP | $13.2bn | 13F-HR | |
| Q1 2022 | Hudson Bay Capital Management LP | $7.4bn | 13F-HR | |
| Q4 2021 | Hudson Bay Capital Management LP | $9.8bn | 13F-HR | |
| Q3 2021 | Hudson Bay Capital Management LP | $7.4bn | 13F-HR | |
| Q2 2021 | Hudson Bay Capital Management LP | $8.3bn | 13F-HR | |
| Q1 2021 | Hudson Bay Capital Management LP | $8.1bn | 13F-HR | |
| Q4 2020 | Hudson Bay Capital Management LP | $9.3bn | 1 | 13F-HR |
| Q3 2020 | Hudson Bay Capital Management LP | $6.7bn | 13F-HR | |
| Q2 2020 | Hudson Bay Capital Management LP | $5.7bn | 13F-HR | |
| Q1 2020 | Hudson Bay Capital Management LP | $4.0bn | 13F-HR | |
| Q4 2019 | Hudson Bay Capital Management LP | $4.5bn | 13F-HR | |
| Q3 2019 | Hudson Bay Capital Management LP | $3.6bn | 13F-HR | |
| Q2 2019 | Hudson Bay Capital Management LP | $4.4bn | 13F-HR | |
| Q1 2019 | Hudson Bay Capital Management LP | $7.8bn | 13F-HR | |
| Q4 2018 | Hudson Bay Capital Management LP | $7.5bn | 13F-HR | |
| Q3 2018 | Hudson Bay Capital Management LP | $8.1bn | 13F-HR | |
| Q2 2018 | Hudson Bay Capital Management LP | $7.1bn | 13F-HR | |
| Q1 2018 | Hudson Bay Capital Management LP | $4.8bn | 13F-HR | |
| Q4 2017 | Hudson Bay Capital Management LP | $4.7bn | 13F-HR | |
| Q3 2017 | Hudson Bay Capital Management LP | $4.0bn | 13F-HR | |
| Q2 2017 | Hudson Bay Capital Management LP | $5.0bn | 13F-HR | |
| Q1 2017 | Hudson Bay Capital Management LP | $7.4bn | 13F-HR | |
| Q4 2016 | Hudson Bay Capital Management LP | $4.8bn | 1 | 13F-HR |
| Q3 2016 | Hudson Bay Capital Management LP | $4.1bn | 13F-HR | |
| Q2 2016 | Hudson Bay Capital Management LP | $3.2bn | 13F-HR | |
| Q1 2016 | Hudson Bay Capital Management LP | $2.1bn | 13F-HR | |
| Q4 2015 | Hudson Bay Capital Management LP | $1.8bn | 13F-HR | |
| Q3 2015 | Hudson Bay Capital Management LP | $2.3bn | 13F-HR | |
| Q2 2015 | Hudson Bay Capital Management LP | $3.4bn | 13F-HR | |
| Q1 2015 | Hudson Bay Capital Management LP | $3.8bn | 13F-HR | |
| Q4 2014 | Hudson Bay Capital Management LP | $4.3bn | 13F-HR | |
| Q3 2014 | Hudson Bay Capital Management LP | $3.5bn | 13F-HR | |
| Q2 2014 | Hudson Bay Capital Management LP | $3.2bn | 13F-HR | |
| Q1 2014 | Hudson Bay Capital Management LP | $3.7bn | 13F-HR | |
| Q4 2013 | Hudson Bay Capital Management LP | $2.5bn | 13F-HR | |
| Q3 2013 | Hudson Bay Capital Management LP | $2.7bn | 13F-HR | |
| Q2 2013 | Hudson Bay Capital Management LP | $1.9bn | 13F-HR |
Reading this record
A 13F lists US-listed long equity and options at the quarter end, filed up to 45 days later. It shows what was held, not when it was bought or at what price, and nothing short. Where a quarter lists only the largest positions, a name missing from it may still be held below that range; the counts of what was opened and sold always cover the whole filing.
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