CastleKnight Management LP — 13F Holdings & Portfolio
CIK 1835751 · latest 13F-HR filed 2026-05-15
CastleKnight Management LP manages $6.00B in 13F-reported U.S. long-equity assets across 451 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are SPY (19.84%), SPY (7.16%), QQQ (7.02%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 99 new positions, exited 34, added to 113, and trimmed 138.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$6.00B
Long-equity book
451
Distinct positions
2026-03-31
Filed 2026-05-15
+99 / −34 / ↑113 / ↓138
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- SILICON MOTION TECHNOLOGY CO$28.7M +376.5%
- CELESTICA INC$28.0M +115.5%
- SANMINA CORP$24.4M +265.7%
- INTERNATIONAL SEAWAYS INC$18.1M +646.8%
- NVIDIA CORPORATION$13.2M +35.2%
Top Trims
- VERTIV HOLDINGS CO-$37.1M -83.4%
- META PLATFORMS INC-$37.1M -87.9%
- MODINE MFG CO-$34.2M -77.5%
- DIGITALBRIDGE GROUP INC-$24.8M -82.5%
- MICRON TECHNOLOGY INC-$17.5M -26.4%
New Positions
- PBF ENERGY INC$49.4M
- CVR ENERGY INC$31.9M
- NETFLIX INC.$18.7M
- CF INDUSTRIES HOLD$18.1M
- FRONTLINE PLC$17.5M
Exited Positions
- SUNOPTA INC$31.2M
- INVESCO QQQ TR$12.3M
- ADVANTAGE SOLUTIONS INC$10.4M
- BABCOCK & WILCOX ENTERPRISES$8.3M
- TEVA PHARMACEUTICAL INDS LTD$7.7M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | STATE STR SPDR S&P 500 ETF T Put | SPY | 78462F103 | $1.19B | 19.84% | 1,830,000 | SH |
| 2 | STATE STR SPDR S&P 500 ETF T Call | SPY | 78462F103 | $429.2M | 7.16% | 660,000 | SH |
| 3 | INVESCO QQQ TR Call | QQQ | 46090E103 | $421.3M | 7.02% | 730,000 | SH |
| 4 | ISHARES TR Put | IWM | 464287655 | $409.2M | 6.82% | 1,650,000 | SH |
| 5 | ISHARES TR Call | IWM | 464287655 | $344.7M | 5.75% | 1,390,000 | SH |
| 6 | MICRON TECHNOLOGY INC Call | MU | 595112103 | $163.0M | 2.72% | 482,500 | SH |
| 7 | SANDISK CORP Call | SNDK | 80004C200 | $116.3M | 1.94% | 183,000 | SH |
| 8 | INVESCO QQQ TR Put | QQQ | 46090E103 | $75.0M | 1.25% | 130,000 | SH |
| 9 | NVIDIA CORPORATION Call | NVDA | 67066G104 | $75.0M | 1.25% | 430,000 | SH |
| 10 | PBF ENERGY INC Call | PBF | 69318G106 | $59.0M | 0.98% | 1,240,000 | SH |
| 11 | CELESTICA INC Call | CLS | 15101Q207 | $56.3M | 0.94% | 200,000 | SH |
| 12 | CELESTICA INC | CLS | 15101Q207 | $52.2M | 0.87% | 185,415 | SH |
| 13 | NVIDIA CORPORATION | NVDA | 67066G104 | $50.7M | 0.85% | 290,700 | SH |
| 14 | MARVELL TECHNOLOGY INC | MRVL | 573874104 | $49.5M | 0.83% | 499,700 | SH |
| 15 | PBF ENERGY INC | PBF | 69318G106 | $49.4M | 0.82% | 1,038,306 | SH |
| 16 | MICRON TECHNOLOGY INC | MU | 595112103 | $48.9M | 0.82% | 144,721 | SH |
| 17 | COMMUNITY HEALTH SYS INC NEW | CYH | 203668108 | $37.2M | 0.62% | 12,667,586 | SH |
| 18 | SILICON MOTION TECHNOLOGY CO | SIMO | 82706C108 | $36.3M | 0.61% | 323,475 | SH |
| 19 | VERTIV HOLDINGS CO Call | VRT | 92537N108 | $35.1M | 0.58% | 140,000 | SH |
| 20 | SANMINA CORP | SANM | 801056102 | $33.6M | 0.56% | 259,100 | SH |
| 21 | CVR ENERGY INC | CVI | 12662P108 | $31.9M | 0.53% | 948,431 | SH |
| 22 | MARVELL TECHNOLOGY INC Call | MRVL | 573874104 | $31.7M | 0.53% | 320,000 | SH |
| 23 | TSAKOS ENERGY NAVIGATION LTD | TEN | G9108L173 | $31.5M | 0.53% | 799,391 | SH |
| 24 | NORDIC AMERICAN TANKERS LIMI | NAT | G65773106 | $30.8M | 0.51% | 5,263,646 | SH |
| 25 | MADISON SQUARE GRDN SPRT COR | MSGS | 55825T103 | $28.9M | 0.48% | 89,839 | SH |
| 26 | TEEKAY TANKERS LTD | TNK | G8726X106 | $28.6M | 0.48% | 390,336 | SH |
| 27 | IREN LIMITED | IREN | Q4982L109 | $27.6M | 0.46% | 806,175 | SH |
| 28 | CF INDUSTRIES HOLD Call | CF | 125269100 | $27.3M | 0.45% | 210,000 | SH |
| 29 | HUT 8 CORP | HUT | 44812J104 | $26.8M | 0.45% | 570,300 | SH |
| 30 | ALPHABET INC | GOOGL | 02079K305 | $25.4M | 0.42% | 88,300 | SH |
| 31 | BROADCOM INC Call | AVGO | 11135F101 | $24.8M | 0.41% | 80,000 | SH |
| 32 | PROSHARES TR | TBT | 74347B201 | $24.1M | 0.40% | 684,449 | SH |
| 33 | APPLIED MATLS INC Call | AMAT | 038222105 | $23.9M | 0.40% | 70,000 | SH |
| 34 | SANDISK CORP | SNDK | 80004C200 | $23.9M | 0.40% | 37,600 | SH |
| 35 | BITDEER TECHNOLOGIES GROUP | BTDR | G11448100 | $23.4M | 0.39% | 2,703,516 | SH |
| 36 | AMAZON COM INC | AMZN | 023135106 | $23.4M | 0.39% | 112,190 | SH |
| 37 | ALPHABET INC Call | GOOGL | 02079K305 | $23.0M | 0.38% | 80,000 | SH |
| 38 | CARLYLE GROUP INC | CG | 14316J108 | $22.9M | 0.38% | 472,976 | SH |
| 39 | LSB INDS INC | LXU | 502160104 | $22.5M | 0.38% | 1,513,316 | SH |
| 40 | HUDBAY MINERALS INC | HBM | 443628102 | $22.5M | 0.38% | 1,078,000 | SH |
| 41 | BITFARMS LTD | KEEL | 09173B107 | $21.2M | 0.35% | 10,894,969 | SH |
| 42 | INTERNATIONAL SEAWAYS INC | INSW | Y41053102 | $20.9M | 0.35% | 286,801 | SH |
| 43 | COREWEAVE INC | CRWV | 21873S108 | $20.6M | 0.34% | 266,100 | SH |
| 44 | ADVANCED MICRO DEVICES INC Call | AMD | 007903107 | $20.3M | 0.34% | 100,000 | SH |
| 45 | DHT HOLDINGS INC | DHT | Y2065G121 | $20.3M | 0.34% | 1,108,516 | SH |
| 46 | SILICON MOTION TECHNOLOGY CO Call | SIMO | 82706C108 | $20.2M | 0.34% | 180,000 | SH |
| 47 | TAIWAN SEMICONDUCTOR MANUFAC | TSM | 874039100 | $20.1M | 0.34% | 59,500 | SH |
| 48 | BROADCOM INC | AVGO | 11135F101 | $18.8M | 0.31% | 60,600 | SH |
| 49 | NETFLIX INC. | NFLX | 64110L106 | $18.7M | 0.31% | 194,820 | SH |
| 50 | CF INDUSTRIES HOLD | CF | 125269100 | $18.1M | 0.30% | 139,300 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-15 | $6.00B | 451 | 0000919574-26-003331 |
| 2025-12-31 | 2026-02-17 | $4.51B | 351 | 0000919574-26-001183 |
| 2025-09-30 | 2025-11-14 | $5.08B | 453 | 0000919574-25-006966 |