Castleknight Management Lp
Institutional manager — quarterly 13F holdings, Q ending 2026-03-31
Reported value
$6.00B
Q ending 2026-03-31
Prior quarter
$4.51B
Q ending 2025-12-31
Change
+32.9% QoQ · +135.4% YoY
Positions
451
reported holdings
Largest positions
Top 100 of 451 reported positions by value, Q ending 2026-03-31. A manager can hold shares, calls and puts on the same security at once — such positions are listed as separate rows. Type: Shares = common stock, Put/Call = option positions (valued at the underlying), Principal = debt. Tickers link to stock pages where covered.
| Holding | Ticker | Type | Value ▼ | Shares |
|---|---|---|---|---|
| State Str Spdr S&P 500 Etf T | SPY | Put | $1.19B | 1.8M |
| State Str Spdr S&P 500 Etf T | SPY | Call | $429.2M | 660K |
| Invesco Qqq Tr | QQQ | Call | $421.3M | 730K |
| Ishares Tr | IWM | Put | $409.2M | 1.6M |
| Ishares Tr | IWM | Call | $344.7M | 1.4M |
| Micron Technology Inc | MU | Call | $163.0M | 483K |
| Sandisk Corp | SNDK | Call | $116.3M | 183K |
| Invesco Qqq Tr | QQQ | Put | $75.0M | 130K |
| Nvidia Corporation | NVDA | Call | $75.0M | 430K |
| Pbf Energy Inc | PBF | Call | $59.0M | 1.2M |
| Celestica Inc | CLS | Call | $56.3M | 200K |
| Celestica Inc | CLS | Shares | $52.2M | 185K |
| Nvidia Corporation | NVDA | Shares | $50.7M | 291K |
| Marvell Technology Inc | MRVL | Shares | $49.5M | 500K |
| Pbf Energy Inc | PBF | Shares | $49.4M | 1.0M |
| Micron Technology Inc | MU | Shares | $48.9M | 145K |
| Community Health Sys Inc New | CYH | Shares | $37.2M | 12.7M |
| Silicon Motion Technology Co | SIMO | Shares | $36.3M | 323K |
| Vertiv Holdings Co | VRT | Call | $35.1M | 140K |
| Sanmina Corp | SANM | Shares | $33.6M | 259K |
| Cvr Energy Inc | CVI | Shares | $31.9M | 948K |
| Marvell Technology Inc | MRVL | Call | $31.7M | 320K |
| Tsakos Energy Navigation Ltd | Shares | $31.5M | 799K | |
| Nordic American Tankers Limi | Shares | $30.8M | 5.3M | |
| Madison Square Grdn Sprt Cor | MSGS | Shares | $28.9M | 90K |
| Teekay Tankers Ltd | Shares | $28.6M | 390K | |
| Iren Limited | Shares | $27.6M | 806K | |
| Cf Industries Hold | CF | Call | $27.3M | 210K |
| Hut 8 Corp | HUT | Shares | $26.8M | 570K |
| Alphabet Inc | GOOGL | Shares | $25.4M | 88K |
| Broadcom Inc | AVGO | Call | $24.8M | 80K |
| Proshares Tr | TBT | Shares | $24.1M | 684K |
| Applied Matls Inc | AMAT | Call | $23.9M | 70K |
| Sandisk Corp | SNDK | Shares | $23.9M | 38K |
| Bitdeer Technologies Group | Shares | $23.4M | 2.7M | |
| Amazon Com Inc | AMZN | Shares | $23.4M | 112K |
| Alphabet Inc | GOOGL | Call | $23.0M | 80K |
| Carlyle Group Inc | CG | Shares | $22.9M | 473K |
| Lsb Inds Inc | LXU | Shares | $22.5M | 1.5M |
| Hudbay Minerals Inc | HBM | Shares | $22.5M | 1.1M |
| Bitfarms Ltd | 1B2 | Shares | $21.2M | 10.9M |
| International Seaways Inc | Shares | $20.9M | 287K | |
| Coreweave Inc | CRWV | Shares | $20.6M | 266K |
| Advanced Micro Devices Inc | AMD | Call | $20.3M | 100K |
| Dht Holdings Inc | Shares | $20.3M | 1.1M | |
| Silicon Motion Technology Co | SIMO | Call | $20.2M | 180K |
| Taiwan Semiconductor Manufac | TSM | Shares | $20.1M | 60K |
| Broadcom Inc | AVGO | Shares | $18.8M | 61K |
| Netflix Inc. | NFLX | Shares | $18.7M | 195K |
| Cf Industries Hold | CF | Shares | $18.1M | 139K |
| Ziff Davis Inc | ZD | Shares | $17.7M | 422K |
| Frontline Plc | Shares | $17.5M | 502K | |
| Meta Platforms Inc | META | Call | $17.2M | 30K |
| Cvr Energy Inc | CVI | Call | $16.8M | 500K |
| Titan Amer Sa | Shares | $16.8M | 1.1M | |
| Advantage Solutions Inc | ADV | Shares | $15.8M | 748K |
| Advansix Inc | ASIX | Shares | $15.4M | 632K |
| Advanced Micro Devices Inc | AMD | Shares | $15.2M | 75K |
| Taiwan Semiconductor Manufac | TSM | Call | $15.2M | 45K |
| Netflix Inc. | NFLX | Call | $14.4M | 150K |
| Apollo Global Mgmt Inc | APO | Shares | $14.4M | 129K |
| Fs Kkr Cap Corp | FSK | Shares | $14.2M | 1.4M |
| Talen Energy Corp | TLN | Shares | $14.1M | 44K |
| Pediatrix Medical Group Inc | MD | Shares | $13.7M | 642K |
| Freeport Mcmoran Inc | FCX | Call | $13.5M | 230K |
| Salesforce Inc | CRM | Shares | $13.0M | 70K |
| Charter Communications Inc | CHTR | Shares | $13.0M | 60K |
| Amazon Com Inc | AMZN | Call | $12.5M | 60K |
| Hf Sinclair Corp | DINO | Call | $12.5M | 200K |
| Capital One Finl Corp | COF | Shares | $12.2M | 67K |
| Torm Plc | Shares | $12.1M | 432K | |
| Delta Air Lines Inc | DAL | Call | $12.0M | 180K |
| Dell Technologies Inc | DELL | Call | $11.5M | 70K |
| Amkor Technology Inc | AMKR | Shares | $11.3M | 251K |
| Industrial Logistics Pptys T | ILPT | Shares | $10.7M | 1.9M |
| Scorpio Tankers Inc | Shares | $10.6M | 142K | |
| Mattel Inc | MAT | Shares | $10.4M | 715K |
| Sanmina Corp | SANM | Call | $10.4M | 80K |
| Peloton Interactive Inc | PTON | Shares | $10.3M | 2.4M |
| Energizer Hldgs Inc | ENR | Shares | $10.2M | 619K |
| Modine Mfg Co | MOD | Shares | $9.9M | 46K |
| Madison Square Grdn Sprt Cor | MSGS | Call | $9.6M | 30K |
| Siriusxm Holdings Inc | SIRI | Shares | $9.5M | 414K |
| United Airls Hldgs Inc | UAL | Shares | $9.5M | 104K |
| Nine Energy Service Inc | NINE | Shares | $9.5M | 1.2M |
| Reddit Inc | RDDT | Call | $9.4M | 70K |
| Perion Network Ltd | Shares | $9.4M | 942K | |
| Advansix Inc | ASIX | Call | $9.4M | 385K |
| Norwegian Cruise Line Hldgs | Shares | $9.3M | 497K | |
| Ardent Health Inc | ARDT | Shares | $9.2M | 1.1M |
| United Airls Hldgs Inc | UAL | Call | $9.2M | 100K |
| Universal Hlth Svcs Inc | UHS | Shares | $9.1M | 51K |
| Columbus Mckinnon Corp N Y | CMCO | Shares | $9.1M | 626K |
| Starz Entertainment Corp. | STRZ | Shares | $9.1M | 791K |
| Helen Of Troy Ltd | Shares | $9.1M | 630K | |
| Apa Corporation | APA | Call | $8.9M | 210K |
| Park Hotels & Resorts Inc | PK | Shares | $8.9M | 845K |
| Cipher Digital Inc | CIFR | Shares | $8.9M | 690K |
| Nrg Energy Inc | NRG | Shares | $8.8M | 60K |
| Aes Corp | AES | Shares | $8.3M | 592K |
Values as reported in public regulatory filings (USD); holdings are reported quarterly, up to 45 days after quarter end, and may contain reporting errors. Nothing here is investment advice.