HBK Investments L P holds a focused book of 221 stocks worth $7.9B as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened Penumbra Inc and trimmed Norfolk Southern Corp. Their largest long position is Hologic Inc at 9% of the equity book. They also disclosed $1.7B in put options (a bearish bet) and $177.2M in call options (bullish), shown separately below and excluded from the equity book.
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Use Arkolith to show HBK INVESTMENTS L P's latest holdings, largest changes, and filing provenance.
Top-heavy: focused book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
65% 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
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Hologic Inc COM | $740.8M | 9.80M | 9.3% | ▲+17% Added · +1.4M sh | |
| 2 | Electronic Arts Inc COM | $666.7M | 3.27M | 8.4% | ▲+71% Added · +1.4M sh | |
| 3 | Penumbra Inc COM | $536.6M | 1.63M | 6.8% | ▲New New position | |
| 4 | Norfolk Southn Corp COM | $498.3M | 1.74M | 6.3% | ▼−18% Reduced · −394K sh | |
| 5 | Masimo Corp COM | $458.2M | 2.58M | 5.8% | ▲New New position | |
| 6 | Warner Bros Discovery Inc COM SER A | $449.3M | 16.36M | 5.7% | ▲+83% Added · +7.4M sh | |
| 7 | Coterra Energy Inc COM | $371.4M | 10.57M | 4.7% | ▲New New position | |
| 8 | Kenvue Inc COM | $362.0M | 21.00M | 4.6% | ▲+728% Added · +18.5M sh | |
| 9 | Air Lease Corp CL A | $358.9M | 5.53M | 4.5% | ▲+20% Added · +925K sh | |
| 10 | Clearwater Analytics Hldgs I CL A | $328.1M | 13.88M | 4.1% | ▲37× Added · +13.5M sh | |
| 11 | Sealed Air Corp New COM | $307.2M | 7.31M | 3.9% | ▲New New position | |
| 12 | Arcellx Inc COMMON STOCK | $261.6M | 2.28M | 3.3% | ▲New New position | |
| 13 | Janus Henderson Group PLC ORD SHS | $217.3M | 4.23M | 2.7% | ▲New New position | |
| 14 | Liberty Broadband Corp COM SER C | $215.7M | 4.29M | 2.7% | ▼−27% Reduced · −1.6M sh | |
| 15 | TXNM Energy Inc COM | $177.8M | 3.04M | 2.2% | ▲+79% Added · +1.3M sh | |
| 16 | Terns Pharmaceuticals Inc COM | $155.5M | 2.95M | 2.0% | ▲New New position | |
| 17 | Apellis Pharmaceuticals Inc COM | $142.8M | 3.55M | 1.8% | ▲New New position | |
| 18 | Chart Inds Inc COM | $142.5M | 689.1K | 1.8% | ▼−65% Reduced · −1.3M sh | |
| 19 | Amicus Therapeutic COM | $127.0M | 8.78M | 1.6% | ▼−42% Reduced · −6.5M sh | |
| 20 | Teck Resources Ltd CL B | $82.0M | 1.59M | 1.0% | ▲New New position | |
| 21 | CSG Sys Intl Inc NOTE 3.875% 9/1 | $77.6M | 63.90M | 1.0% | ▲+26% Added · +13.1M sh | |
| 22 | Duke Energy Corp New NOTE 4.125% 4/1 | $50.7M | 46.00M | 0.6% | ▲+130% Added · +26.0M sh | |
| 23 | Ark 21SHARES Bitcoin ETF SHS BEN INT | $44.2M | 1.97M | 0.6% | —Held | |
| 24 | Wayfair Inc NOTE 3.500%11/1 | $43.5M | 24.80M | 0.5% | —Held | |
| 25 | TXNM Energy Inc NOTE 5.750% 6/0 | $36.1M | 27.00M | 0.5% | ▲+20% Added · +4.5M sh | |
| 26 | Freshpet Inc NOTE 3.000% 4/0 | $35.2M | 30.70M | 0.4% | ▲+13% Added · +3.5M sh | |
| 27 | Alignment Healthcare Inc NOTE 4.250%11/1 | $34.0M | 24.10M | 0.4% | —Held | |
| 28 | Peloton Interactive Inc NOTE 5.500%12/0 | $31.5M | 23.50M | 0.4% | ▲+4.4% Added · +1.0M sh | |
| 29 | Comcast Corp New CL A | $30.6M | 1.07M | 0.4% | ▲New New position | |
| 30 | News Corp New CL A | $29.5M | 1.18M | 0.4% | —Held | |
| 31 | Tripadvisor Inc COM | $26.9M | 2.53M | 0.3% | ▲+506% Added · +2.1M sh | |
| 32 | Siriusxm Holdings Inc COMMON STOCK | $26.9M | 1.16M | 0.3% | ▼−31% Reduced · −521K sh | |
| 33 | Solventum Corp COM SHS | $25.3M | 388.0K | 0.3% | —Held | |
| 34 | Ani Pharmaceuticals Inc NOTE 2.250% 9/0 | $24.9M | 20.15M | 0.3% | ▼−11% Reduced · −2.5M sh | |
| 35 | Fidelity Ethereum FD SHS | $23.5M | 1.13M | 0.3% | —Held | |
| 36 | Rivian Automotive Inc NOTE 3.625%10/1 | $23.0M | 24.00M | 0.3% | ▼−29% Reduced · −10.0M sh | |
| 37 | Uber Technologies Inc COM | $21.5M | 298.8K | 0.3% | ▲+8.0% Added · +22K sh | |
| 38 | Strategy Inc NOTE 12/0 | $21.0M | 25.00M | 0.3% | ▼−47% Reduced · −22.4M sh | |
| 39 | Silvercorp Metals Inc NOTE 4.750%12/1 | $20.6M | 8.00M | 0.3% | ▲+23% Added · +1.5M sh | |
| 40 | Hewlett Packard Enterprise C 7.625 MAND CONV | $19.6M | 300.0K | 0.2% | ▲+50% Added · +100K sh | |
| 41 | Medline Inc COM CL A | $18.9M | 425.0K | 0.2% | ▲+81% Added · +190K sh | |
| 42 | Mattel Inc COM | $18.9M | 1.30M | 0.2% | ▲New New position | |
| 43 | Concentra Group Holdings Par COMMON STOCK | $18.5M | 862.8K | 0.2% | —Held | |
| 44 | Gamestop Corp CL A | $18.0M | 782.4K | 0.2% | ▲+132% Added · +446K sh | |
| 45 | Centerpoint Energy Inc NOTE 4.250% 8/1 | $17.7M | 14.89M | 0.2% | ▲+30% Added · +3.4M sh | |
| 46 | Vertex Inc NOTE 0.750% 5/0 | $17.4M | 20.00M | 0.2% | ▼−11% Reduced · −2.5M sh | |
| 47 | Fortuna MNG Corp NOTE 3.750% 6/3 | $17.3M | 10.00M | 0.2% | —Held | |
| 48 | Alibaba Group Hldg Ltd NOTE 0.500% 6/0 | $16.7M | 12.00M | 0.2% | —Held | |
| 49 | Marriott Vacations Worldwide NOTE 3.250%12/1 | $15.9M | 16.50M | 0.2% | —Held | |
| 50 | Pennymac Corp NOTE 8.500% 6/0 | $15.9M | 15.25M | 0.2% | ▼−25% Reduced · −5.0M sh |
Put / call positions from the 13F — totals include every disclosed option leg
| Type | Underlying | Notional value | Underlying shares |
|---|---|---|---|
| PUT · bearish | NVIDIA CORPNVDA | $594.9M | 3.4M |
| PUT · bearish | ISHARES RUSSELL 2000 ETFIWM | $168.7M | 680K |
| PUT · bearish | SS SPDR S&P 500 ETF TRUST-USSPY | $154.7M | 238K |
| PUT · bearish | INVESCO QQQ TRUST SERIES 1QQQ | $86.1M | 149K |
| CALL · bullish | INVESCO QQQ TRUST SERIES 1QQQ | $79.1M | 137K |
| PUT · bearish | ISHARES BITCOIN TRUST ETFIBIT | $56.9M | 1.5M |
| PUT · bearish | HOWMET AEROSPACE INCHWM | $48.8M | 212K |
| PUT · bearish | NEBIUS GROUP NVNBIS | $46.7M | 450K |
| PUT · bearish | TESLA INCTSLA | $40.0M | 108K |
| CALL · bullish | SS SPDR S&P OG EXP & PRODXOP | $29.7M | 163K |
| PUT · bearish | TRIPADVISOR INCTRIP | $25.1M | 2.4M |
| PUT · bearish | COSTCO WHOLESALE CORPCOST | $23.8M | 24K |
| PUT · bearish | APPLE INCAAPL | $18.7M | 74K |
| PUT · bearish | BOEING CO/THEBA | $18.6M | 94K |
| PUT · bearish | ADVANCED MICRO DEVICESAMD | $17.7M | 87K |
| CALL · bullish | SIRIUS XM HOLDINGS INCSIRI | $16.7M | 722K |
| PUT · bearish | BERKSHIRE HATHAWAY INC-CL BBRK/B | $15.9M | 33K |
| PUT · bearish | CINEMARK HOLDINGS INCCNK | $15.9M | 557K |
| PUT · bearish | ISHARES RUSSELL 2000 GROWTHIWO | $15.7M | 50K |
| CALL · bullish | GAMESTOP CORP-CLASS AGME | $15.4M | 667K |
| PUT · bearish | QUALCOMM INCQCOM | $14.1M | 110K |
| PUT · bearish | META PLATFORMS INC-CLASS AMETA | $13.7M | 24K |
| PUT · bearish | VELOCITY FINANCIAL INCVEL | $13.3M | 738K |
| PUT · bearish | WALMART INCWMT | $13.3M | 107K |
| PUT · bearish | SS FINANCIAL SELECT SECTORXLF | $12.6M | 255K |
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 125 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 15, 2026 | 346 | $9.9B | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 17, 2026 | 260 | $12.7B | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Nov 14, 2025 | 244 | $9.1B | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Aug 13, 2025 | 202 | $4.7B | 13F-HR |
| Q1 2025 | Mar 31, 2025 | May 15, 2026 | 185 | $7.1B | 13F-HR/A |
| Q4 2024 | Dec 31, 2024 | Feb 17, 2026 | 196 | $8.0B | 13F-HR/A |
| Q3 2024 | Sep 30, 2024 | Nov 14, 2025 | 170 | $8.6B | 13F-HR/A |
| Q2 2024 | Jun 30, 2024 | Aug 13, 2025 | 165 | $22.6B | 13F-HR/A |
| Q1 2024 | Mar 31, 2024 | May 15, 2026 | 167 | $23.0B | 13F-HR/A |
| Q4 2023 | Dec 31, 2023 | Feb 17, 2026 | 207 | $22.0B | 13F-HR/A |
| Q3 2023 | Sep 30, 2023 | Nov 14, 2025 | 230 | $19.1B | 13F-HR/A |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~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. Price-derived performance is withheld until the price-source policy and freshness gate are green.