Castleark Management LLC holds a diversified book of 292 stocks worth $3.0B as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened Diamondback Energy Inc and trimmed Nvidia Corp. Their largest long position is Nvidia Corp at 7% of the equity book.
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curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/1106832/holdings"
Use Arkolith to show CASTLEARK MANAGEMENT LLC's latest holdings, largest changes, and filing provenance.
Top-heavy: diversified book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
85% 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 | Nvidia Corporation COM | $219.4M | 1.26M | 7.3% | ▼−11% Reduced · −150K sh | |
| 2 | Alphabet Inc CAP STK CL A | $120.2M | 418.0K | 4.0% | ▲+9.5% Added · +36K sh | |
| 3 | Microsoft Corp COM | $97.8M | 264.1K | 3.2% | ▼−29% Reduced · −105K sh | |
| 4 | SPDR Series Trust STATE STREET SPD | $90.2M | 2.69M | 3.0% | ▲+6.7% Added · +169K sh | |
| 5 | Apple Inc COM | $88.8M | 350.0K | 2.9% | ▼−9.6% Reduced · −37K sh | |
| 6 | Ishares TR US TREAS BD ETF | $76.3M | 3.33M | 2.5% | —Held | |
| 7 | Lam Research Corp COM NEW | $71.9M | 336.7K | 2.4% | ▼−9.7% Reduced · −36K sh | |
| 8 | Meta Platforms Inc CL A | $70.9M | 124.0K | 2.3% | ▲+1.3% Added · +2K sh | |
| 9 | Vanguard Scottsdale FDS MTG-BKD SECS ETF | $69.9M | 1.49M | 2.3% | ▼−13% Reduced · −218K sh | |
| 10 | Eli Lilly & Co COM | $67.6M | 73.5K | 2.2% | ▼−9.9% Reduced · −8K sh | |
| 11 | Broadcom Inc COM | $62.7M | 202.7K | 2.1% | ▼−1.5% Reduced · −3K sh | |
| 12 | Arista Networks Inc COM SHS | $52.9M | 430.9K | 1.8% | ▲+4.8% Added · +20K sh | |
| 13 | Amazon Com Inc COM | $51.2M | 245.9K | 1.7% | ▼−48% Reduced · −226K sh | |
| 14 | Gilead Sciences Inc COM | $47.7M | 342.1K | 1.6% | ▲+23% Added · +65K sh | |
| 15 | Schwab Charles Corp COM | $47.4M | 504.1K | 1.6% | ▼−19% Reduced · −118K sh | |
| 16 | Visa Inc COM CL A | $46.5M | 153.8K | 1.5% | ▼−9.8% Reduced · −17K sh | |
| 17 | Mastercard Incorporated CL A | $46.0M | 92.0K | 1.5% | ▼−10% Reduced · −10K sh | |
| 18 | SPDR Series Trust STATE STREET SPD | $38.9M | 1.33M | 1.3% | —Held | |
| 19 | Shopify Inc CL A SUB VTG SHS | $36.8M | 310.6K | 1.2% | ▼−10% Reduced · −35K sh | |
| 20 | Ge Vernova Inc COM | $36.2M | 41.5K | 1.2% | ▼−13% Reduced · −6K sh | |
| 21 | Vanguard Scottsdale FDS LG-TERM COR BD | $33.5M | 448.3K | 1.1% | ▲+90% Added · +212K sh | |
| 22 | Servicenow Inc COM | $31.8M | 303.8K | 1.1% | ▲+12% Added · +33K sh | |
| 23 | Tapestry Inc COM | $28.9M | 204.5K | 1.0% | ▲+44% Added · +62K sh | |
| 24 | Diamondback Energy Inc COM | $28.7M | 145.0K | 0.9% | ▲New New position | |
| 25 | Chevron Corporation COM | $28.3M | 136.6K | 0.9% | ▲New New position | |
| 26 | Vertiv Holdings Co COM CL A | $28.2M | 112.4K | 0.9% | ▼−9.9% Reduced · −12K sh | |
| 27 | Ulta Beauty Inc COM | $26.5M | 50.6K | 0.9% | ▲+1.4% Added · +688 sh | |
| 28 | Ishares TR 10-20 YR TRS ETF | $26.0M | 258.4K | 0.9% | —Held | |
| 29 | Analog Devices Inc COM | $24.8M | 77.9K | 0.8% | ▲+27% Added · +17K sh | |
| 30 | Baker Hughes Company CL A | $23.6M | 387.2K | 0.8% | ▲+629% Added · +334K sh | |
| 31 | Booking Holdings Inc COM | $20.6M | 4.9K | 0.7% | ▼−11% Reduced · −576 sh | |
| 32 | Snowflake Inc COM SHS | $20.5M | 136.0K | 0.7% | ▼−10% Reduced · −15K sh | |
| 33 | Ishares TR MBS ETF | $19.4M | 204.2K | 0.6% | —Held | |
| 34 | Range Res Corp COM | $18.5M | 410.5K | 0.6% | ▲+455% Added · +337K sh | |
| 35 | Advanced Micro Devices Inc COM | $18.1M | 89.0K | 0.6% | ▼−15% Reduced · −16K sh | |
| 36 | CF Industries Hold COM | $16.8M | 129.2K | 0.6% | ▲New New position | |
| 37 | Digitalocean Hldgs Inc COM | $15.6M | 182.2K | 0.5% | ▼−1.5% Reduced · −3K sh | |
| 38 | Ascendis Pharma A/s SPONSORED ADR | $15.5M | 67.6K | 0.5% | ▲+1.9% Added · +1K sh | |
| 39 | Advanced Energy Inds COM | $15.0M | 46.6K | 0.5% | ▼−5.1% Reduced · −3K sh | |
| 40 | JPMorgan Chase & Co COM | $14.9M | 50.5K | 0.5% | ▲+13% Added · +6K sh | |
| 41 | Guardant Health Inc COM | $14.8M | 160.3K | 0.5% | ▼−2.9% Reduced · −5K sh | |
| 42 | Tesla Inc COM | $14.6M | 39.2K | 0.5% | ▲+39% Added · +11K sh | |
| 43 | TJX Cos Inc New COM | $14.5M | 90.6K | 0.5% | —Held | |
| 44 | Walmart Inc COM | $14.1M | 113.3K | 0.5% | —Held | |
| 45 | Taiwan Semiconductor Manufac SPONSORED ADS | $13.9M | 41.2K | 0.5% | ▲+14% Added · +5K sh | |
| 46 | Ishares TR ISHS 5-10YR INVT | $13.8M | 260.0K | 0.5% | —Held | |
| 47 | Nextpower Inc CLASS A COM | $13.8M | 114.1K | 0.5% | ▲+8.1% Added · +9K sh | |
| 48 | Permian Resources Corp CLASS A COM | $13.5M | 631.0K | 0.4% | ▲New New position | |
| 49 | Firstcash Holdings Inc COM | $13.3M | 70.7K | 0.4% | ▲+16% Added · +10K sh | |
| 50 | Microchip Technology Inc. COM | $13.2M | 204.9K | 0.4% | ▼−60% Reduced · −311K sh |
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 | 292 | $3.0B | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 13, 2026 | 294 | $3.4B | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Nov 17, 2025 | 284 | $3.6B | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Aug 18, 2025 | 275 | $3.3B | 13F-HR |
| Q1 2025 | Mar 31, 2025 | May 15, 2025 | 280 | $2.9B | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Feb 18, 2025 | 283 | $2.9B | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 15, 2024 | 272 | $2.5B | 13F-HR |
| Q2 2024 | Jun 30, 2024 | Aug 14, 2024 | 271 | $2.4B | 13F-HR |
| Q1 2024 | Mar 31, 2024 | May 16, 2024 | 278 | $2.4B | 13F-HR |
| Q4 2023 | Dec 31, 2023 | Feb 15, 2024 | 281 | $2.3B | 13F-HR |
| Q3 2023 | Sep 30, 2023 | Nov 15, 2023 | 274 | $2.0B | 13F-HR |
| Q2 2023 | Jun 30, 2023 | Aug 16, 2023 | 274 | $2.2B | 13F-HR |
| Q1 2023 | Mar 31, 2023 | May 16, 2023 | 272 | $2.0B | 13F-HR |
| Q4 2022 | Dec 31, 2022 | Feb 10, 2023 | 282 | $1.9B | 13F-HR |
| Q3 2022 | Sep 30, 2022 | Nov 15, 2022 | 284 | $1.8B | 13F-HR |
| Q2 2022 | Jun 30, 2022 | Aug 16, 2022 | 306 | $1.9B | 13F-HR |
| Q1 2022 | Mar 31, 2022 | May 16, 2022 | 321 | $2.3B | 13F-HR |
| Q4 2021 | Dec 31, 2021 | Feb 16, 2022 | 326 | $2.7B | 13F-HR |
| Q3 2021 | Sep 30, 2021 | Nov 12, 2021 | 328 | $2.6B | 13F-HR |
| Q2 2021 | Jun 30, 2021 | Aug 17, 2021 | 335 | $3.0B | 13F-HR |
| Q1 2021 | Mar 31, 2021 | May 14, 2021 | 330 | $2.8B | 13F-HR |
| Q4 2020 | Dec 31, 2020 | Feb 17, 2021 | 328 | $2.7B | 13F-HR |
| Q3 2020 | Sep 30, 2020 | Nov 16, 2020 | 343 | $2.6B | 13F-HR |
| Q2 2020 | Jun 30, 2020 | Aug 14, 2020 | 334 | $2.3B | 13F-HR |
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.