CastleKnight Management portfolio
Type not verifiedPortfolio as of Jun 30, 2026 (Q2 2026) · filed with the SEC on Aug 14, 2026 · data updated on Nov 5, 2026 · Q2 2026 13F (filing) ↗ · all its 13F filings ↗
A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.
CastleKnight Management reported a $2.7 bn portfolio of 398 companies (400 positions, counting each share class separately) to the SEC as of the end of Q2 2026. Its largest positions are IREN, CLS, NVDA. During the quarter it opened NXP Semiconductors and Keel Infrastructure.
Sections with a free account
What changed this quarter
307 positions with a change (64 new, 105 added to, 98 trimmed, 40 sold); also, 5 entered through an IPO, 6 exited through an acquisition or merger. 12 are listed here: those of 0.5 points of the portfolio or more (up to 12).
- Newly listedLiftoff MobileLFTO1.0% of the portfolio
It started trading this quarter: it appears in a 13F for the first time. The filing does not say whether the manager already held it before the listing, so it is not counted as a purchase.
- Marvell Technology−97%fewer sharesReduced2.3% → 0.2%
- Micron Technology−85%fewer sharesReduced2.3% → 0.9%
- NXP Semiconductors+1.5 ppof portfolioNew— → 1.5%
- Keel Infrastructure+1.3 ppof portfolioNew— → 1.3%
- Silicon Motion Technology−81%fewer sharesReduced1.7% → 0.7%
- Sanmina−74%fewer sharesReduced1.6% → 0.6%
- Fermi+2,043%more sharesIncreasedunder 0.1% → 1.1%
- Hut 8−77%fewer sharesReduced1.3% → 0.6%
- Meta Platforms+529%more sharesIncreased0.2% → 1.2%
- Sandisk−94%fewer sharesReduced1.1% → 0.2%
- International Seaways+103%more sharesIncreased1.0% → 1.6%
- ERO Copper+971%more sharesIncreased0.1% → 0.9%
The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight: what it bought or sold, excluding price effects.
Top holdings
- IRENIREN2.0%
- CelesticaCLS1.9%
- NVIDIANVDA1.9%
- PBF EnergyPBF1.9%
- Community Health SystemsCYH1.6%
- International SeawaysINSW1.6%
- Bitdeer Technologies GroupBTDR1.6%
- NXP SemiconductorsNXPI1.5%
- Amazon.comAMZN1.5%
- AlphabetGOOGL1.5%
- Nordic American TankersNAT1.5%
- CoreWeaveCRWV1.4%
- DHT HoldingsDHT1.4%
- Keel InfrastructureKEEL1.3%
- Hudbay MineralsHBM1.3%
Portfolio by sector
- ● Information Technology 28%
- ● Industrials 17%
- ● Communication Services 10%
- ● Materials 9%
- ● Consumer Discretionary 9%
- ● Health Care 6%
- ● Consumer Staples 5%
- ● Financials 4%
- ● Energy 4%
- ● Real Estate 2%
- ● Utilities 2%
- ● No sector 2%
Declared options (25)
Besides stocks, CastleKnight Management declared 3 puts (they gain if the stock falls) and 22 calls (they gain if it rises) with a notional of $4.6 bn. The 13F reports the value of the underlying shares, not the premium paid, so these figures look large and are not added to the portfolio. Nor does it say whether the option is bought or written, or its strike or expiry: it may be a hedge.
- CALLInvesco QQQ Trust Series 1 ETFQQQ$943M
- PUTiShares Russell 2000 ETFIWM$715M
- CALLiShares Russell 2000 ETFIWM$688M
- PUTState Str Spdr S&P 500 ETF TSPY$620M
- PUTInvesco QQQ Trust Series 1 ETFQQQ$405M
- CALLState Str Spdr S&P 500 ETF TSPY$291M
- CALLAlphabetGOOGL$78.6M
- CALLNXP SemiconductorsNXPInew this quarter$70.3M
- CALLNVIDIANVDA$60.0M
- CALLCelesticaCLS$58.4M
- CALLMeta PlatformsMETA$53.5M
- CALLAmazon.comAMZN$50.1M
Stakes above 5% (13D/13G)
Companies where this filer reported holding 5% or more of the shares. It is the figure from its latest filing on each one; history since December 2024.
How we classify it
Type not verified: we have not assigned a type because we found no document that is enough to tell. Most 13F filers are in this situation: we only review in depth those that meet the portfolio criteria.
Not counted as a concentrated manager: its portfolio is not within 5 to 100 positions; its top 10 positions are under 45%; more than 20% is options. Its portfolio is shown all the same, but it is left out of manager counts, the consensus and the ranking. How this is decided
Managers of a similar size
A 13F portfolio value between a third and three times this one, whatever the type of filer. It is not a comparison of what they hold.
- Analog Century ManagementInvestment firm · $2.7 bn
- Altrinsic Global AdvisorsInvestment firm · $2.7 bn
- Timucuan Asset Management$2.7 bn
- Avala GlobalInvestment firm · $2.7 bn
- ConsultaInvestment firm · $2.8 bn
- Dorsal Capital ManagementInvestment firm · $2.8 bn