13F filings
Castle Hook Partners
$9.3B in shares, plus $12.5B option notional (calls and puts, not money invested)
$23.4B to $21.8B. Includes price moves and buying or selling; not the fund's return.
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Sector mix of the disclosed holdings
by disclosed valueThe grey slice is mostly calls and puts (57.2% of the disclosed value), which get no sector because a put is a position against a company.
Largest holdings
50 largest of 71 positions| Holding | Type | Value | Shares | % of 13F value |
|---|---|---|---|---|
| SPYSPDR S&P 500 ETF Trust | Call | $12.3B | 16,507,100 | 56.5% |
| NTRANatera | Shares | $704.8M | 2,596,276 | 3.2% |
| WDCWestern Digital | Shares | $577.0M | 903,374 | 2.6% |
| LLYEli Lilly | Shares | $558.0M | 465,187 | 2.6% |
| SNDKSandisk | Shares | $540.2M | 237,578 | 2.5% |
| STXSeagate Technology Holdings | Shares | $527.2M | 546,287 | 2.4% |
| DHRDanaher | Shares | $404.8M | 2,125,349 | 1.9% |
| TTMITTM Technologies | Shares | $333.1M | 1,781,121 | 1.5% |
| AMZNAmazon.com | Shares | $305.8M | 1,283,048 | 1.4% |
| DKSDICK'S Sporting Goods | Shares | $300.1M | 1,323,066 | 1.4% |
| VIKViking Holdings | Shares | $294.6M | 2,814,165 | 1.4% |
| AMATApplied Materials | Shares | $290.6M | 401,956 | 1.3% |
| DXCMDexCom | Shares | $260.7M | 3,870,342 | 1.2% |
| WELLWelltower | Shares | $228.7M | 1,007,754 | 1.0% |
| WWayfair | Shares | $227.0M | 2,455,952 | 1.0% |
| COMPCompass | Shares | $209.9M | 17,025,377 | 1.0% |
| CRDOCredo Technology Group Holding | Shares | $202.2M | 743,555 | 0.9% |
| SOLSSolstice Advanced Materials | Shares | $197.3M | 2,226,617 | 0.9% |
| FIXComfort Systems USA | Shares | $195.2M | 98,482 | 0.9% |
| INTCIntel | Shares | $182.6M | 1,307,838 | 0.8% |
| LINLinde | Shares | $174.2M | 335,749 | 0.8% |
| CRBGCorebridge Financial | Shares | $165.7M | 5,787,225 | 0.8% |
| GOOGAlphabet | Shares | $162.4M | 459,557 | 0.7% |
| EQHEquitable Holdings | Shares | $157.9M | 3,599,539 | 0.7% |
| HBMHudbay Minerals | Shares | $139.5M | 5,909,069 | 0.6% |
| ADIAnalog Devices | Shares | $133.4M | 335,984 | 0.6% |
| SGISomnigroup International | Shares | $122.0M | 1,556,679 | 0.6% |
| UALUnited Airlines Holdings | Shares | $120.0M | 882,187 | 0.6% |
| DALDelta Air Lines | Shares | $117.3M | 1,252,701 | 0.5% |
| LPLALPL Financial Holdings | Shares | $114.6M | 406,916 | 0.5% |
| INSMInsmed | Shares | $105.9M | 993,310 | 0.5% |
| EQIXEquinix | Shares | $103.6M | 99,423 | 0.5% |
| SLB | Shares | $100.3M | 2,156,982 | 0.5% |
| HOODRobinhood Markets | Shares | $92.9M | 926,565 | 0.4% |
| SPHRSphere Entertainment | Shares | $90.3M | 522,039 | 0.4% |
| TMOThermo Fisher Scientific | Shares | $83.2M | 165,965 | 0.4% |
| MTArcelorMittal | Shares | $77.7M | 1,290,147 | 0.4% |
| HALHalliburton | Shares | $70.7M | 2,083,787 | 0.3% |
| APPAppLovin | Shares | $61.2M | 118,710 | 0.3% |
| VVisa | Shares | $55.0M | 160,386 | 0.3% |
| ASHRXtrackers Harvest CSI 300 China A-Shares ETF | Call | $55.0M | 1,500,000 | 0.3% |
| KRMNKarman Holdings | Shares | $51.6M | 1,033,079 | 0.2% |
| RIGTransocean | Shares | $51.2M | 10,470,395 | 0.2% |
| GILGildan Activewear | Shares | $48.0M | 930,085 | 0.2% |
| WMTWalmart | Shares | $47.8M | 421,865 | 0.2% |
| NAMSNewAmsterdam Pharma | Shares | $46.5M | 1,371,005 | 0.2% |
| KREState Street SPDR S&P Regional Banking ETF | Call | $46.4M | 619,400 | 0.2% |
| BWABorgWarner | Shares | $46.0M | 693,016 | 0.2% |
| MCHPMicrochip Technology | Shares | $46.0M | 504,526 | 0.2% |
| FCXFreeport-McMoRan | Shares | $45.9M | 729,397 | 0.2% |
% of 13F value is the position's value against the whole disclosed 13F value, so the rows shown here do not sum to 100% unless every position is listed. Calls and puts are shown as filed: most filers give Value as the notional value of the shares underneath, not money invested, but some give the premium paid, and some count contracts rather than shares.
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What Castle Hook Partners bought and sold in Q2 2026
15 largest moves| Holding | Move | Share change | Est. amount moved | Value after |
|---|---|---|---|---|
| SPYSPDR S&P 500 ETF Trust | New call | new | +$12.3B | $12.3B |
| SPYSPDR S&P 500 ETF Trust | Exited put | -100% | -$10.8B | $0 |
| GLDSPDR Gold Shares | Exited call | -100% | -$6.0B | $0 |
| UALUnited Airlines Holdings | Exited call | -100% | -$1.2B | $0 |
| LLYEli Lilly | New | new | +$558.0M | $558.0M |
| DALDelta Air Lines | Exited call | -100% | -$488.0M | $0 |
| AMZNAmazon.com | Added | +13029.8% | +$303.5M | $305.8M |
| RTX | Exited | -100% | -$248.2M | $0 |
| DHRDanaher | Added | +141.5% | +$237.2M | $404.8M |
| LHXL3Harris Technologies | Exited | -100% | -$232.7M | $0 |
| VIKViking Holdings | Added | +343.8% | +$228.2M | $294.6M |
| WWayfair | Added | +9484.6% | +$224.6M | $227.0M |
| FIXComfort Systems USA | Trimmed | -52.9% | -$218.9M | $195.2M |
| DXCMDexCom | Added | +382.7% | +$206.7M | $260.7M |
| CRDOCredo Technology Group Holding | New | new | +$202.2M | $202.2M |
A change is this filing measured against the one before it. Est. amount moved is the shares added or sold, priced at the Jun 30, 2026 close. An estimate: a 13F gives no trade prices or dates. For a sold-out position, its value at the previous quarter end. A put gains when the stock falls; a call gains when it rises. Option values are as filed, which for most filers is the notional value of the shares underneath.
Questions
What does Castle Hook Partners hold?
Castle Hook Partners disclosed 71 positions worth $21.8B in the Q2 2026 13F filing, $12.5B of it option notional counted at the value of the shares underneath. The largest is a call on SPY at 56.5% of the disclosed value. A 13F lists US-listed stock and options on it; short sales and cash are not in it.
What did Castle Hook Partners buy and sell last quarter?
Comparing the Q2 2026 filing with the quarter before, the largest moves were opening a call on SPY, selling out of a put on SPY, selling out of a call on GLD and selling out of a call on UAL. Changes are measured against the previous filing, not against trades, because a 13F does not disclose trades.
How current is this?
This is the Q2 2026 filing, covering positions held on Jun 30, 2026 and filed with the SEC on Aug 14, 2026. A 13F is due 45 days after the quarter ends, so the most recent filing is always at least six weeks behind the market, and the manager may have changed the book since.
How to read a 13F
WHAT THE FILING COVERS
Positions are as disclosed to the SEC on Form 13F and are not investment advice. How this data is sourced, and what it cannot tell you, is on the methodology page. How the filing itself works is explained in our guide to Form 13F.
Checked for newer filings on Oct 26, 2026.