Ossiam holds a focused book of 388 stocks worth $5.7B as of Q1 2026 (disclosed May 14, 2026, a ~45-day 13F lag). This quarter they opened Ste STR SPDR PT S&P 500 ETF and trimmed Berkshire Hathaway Inc-CL B. Their largest long position is Advanced Micro Devices at 14% of the equity book.
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Use Arkolith to show OSSIAM's latest holdings, largest changes, and filing provenance.
Top-heavy: focused book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
89% 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 | Advanced Micro Devices Inc COM | $808.3M | 3.97M | 14.2% | ▲+40% Added · +1.1M sh | |
| 2 | SPDR Series Trust STATE STREET SPD | $583.2M | 7.62M | 10.3% | ▲New New position | |
| 3 | Tesla Inc COM | $386.0M | 1.04M | 6.8% | ▲+0.1% Added · +1K sh | |
| 4 | Berkshire Hathaway Inc Del CL B NEW | $344.1M | 718.0K | 6.1% | ▼−26% Reduced · −250K sh | |
| 5 | Apple Inc COM | $264.9M | 1.04M | 4.7% | ▲+20% Added · +170K sh | |
| 6 | Broadcom Inc COM | $249.5M | 806.2K | 4.4% | ▲+361% Added · +631K sh | |
| 7 | Amazon Com Inc COM | $213.2M | 1.02M | 3.8% | ▼−19% Reduced · −243K sh | |
| 8 | Nvidia Corporation COM | $188.0M | 1.08M | 3.3% | ▼−23% Reduced · −319K sh | |
| 9 | Goldman Sachs Group Inc COM | $126.3M | 149.2K | 2.2% | ▲+299% Added · +112K sh | |
| 10 | Palantir Technologies Inc CL A | $93.4M | 638.7K | 1.6% | ▲+17% Added · +91K sh | |
| 11 | Adobe Inc COM | $91.2M | 375.1K | 1.6% | ▲+15% Added · +48K sh | |
| 12 | Applied Matls Inc COM | $64.0M | 187.2K | 1.1% | ▲+33% Added · +46K sh | |
| 13 | NXP Semiconductors N V COM | $62.8M | 319.1K | 1.1% | ▲63× Added · +314K sh | |
| 14 | Autodesk Inc COM | $59.7M | 249.2K | 1.0% | ▲+42% Added · +74K sh | |
| 15 | Fortinet Inc COM | $59.0M | 722.1K | 1.0% | ▲+4.4% Added · +30K sh | |
| 16 | Caesars Entertainment Inc Ne COM | $51.9M | 1.96M | 0.9% | —Held | |
| 17 | Exxon Mobil Corp COM | $51.7M | 304.9K | 0.9% | ▲+360% Added · +239K sh | |
| 18 | Mercadolibre Inc COM | $50.1M | 29.0K | 0.9% | ▼−3.2% Reduced · −951 sh | |
| 19 | Uber Technologies Inc COM | $49.8M | 691.7K | 0.9% | ▼−3.5% Reduced · −25K sh | |
| 20 | Crowdstrike Hldgs Inc CL A | $48.9M | 125.2K | 0.9% | ▼−7.5% Reduced · −10K sh | |
| 21 | Alphabet Inc CAP STK CL A | $48.7M | 169.5K | 0.9% | ▲+43% Added · +51K sh | |
| 22 | Ulta Beauty Inc COM | $45.8M | 87.7K | 0.8% | ▲+1.0% Added · +904 sh | |
| 23 | Roku Inc COM CL A | $43.6M | 461.1K | 0.8% | —Held | |
| 24 | S&P Global Inc COM | $40.7M | 95.8K | 0.7% | ▲10× Added · +87K sh | |
| 25 | Amgen Inc COM | $39.9M | 113.5K | 0.7% | ▲+654% Added · +98K sh | |
| 26 | Linde PLC SHS | $39.5M | 79.7K | 0.7% | ▲14× Added · +74K sh | |
| 27 | Intuitive Surgical Inc COM NEW | $37.5M | 81.4K | 0.7% | ▲+2.4% Added · +2K sh | |
| 28 | Sandisk Corp COM | $37.1M | 58.4K | 0.7% | ▲+14% Added · +7K sh | |
| 29 | Mongodb Inc CL A | $37.0M | 151.1K | 0.7% | ▼~0% Reduced · −10 sh | |
| 30 | Abbvie Inc COM | $34.7M | 159.8K | 0.6% | ▲+162% Added · +99K sh | |
| 31 | Truist Finl Corp COM | $33.6M | 730.1K | 0.6% | ▲24× Added · +699K sh | |
| 32 | Eog Res Inc COM | $33.1M | 229.3K | 0.6% | ▲+272% Added · +168K sh | |
| 33 | Align Technology Inc COM | $32.4M | 189.0K | 0.6% | ▲+32% Added · +46K sh | |
| 34 | Unitedhealth Group Inc COM | $31.9M | 117.9K | 0.6% | ▲+673% Added · +103K sh | |
| 35 | Qorvo Inc COM | $31.5M | 407.5K | 0.6% | ▼−12% Reduced · −55K sh | |
| 36 | Airbnb Inc COM CL A | $31.5M | 249.1K | 0.6% | ▲+0.5% Added · +1K sh | |
| 37 | Netflix Inc. COM | $30.7M | 318.8K | 0.5% | ▲+7.3% Added · +22K sh | |
| 38 | Booking Holdings Inc COM | $30.5M | 7.2K | 0.5% | ▲+378% Added · +6K sh | |
| 39 | Doordash Inc CL A | $29.2M | 194.5K | 0.5% | ▼−0.6% Reduced · −1K sh | |
| 40 | Autozone Inc COM | $28.9M | 8.6K | 0.5% | ▲+290% Added · +6K sh | |
| 41 | Lumentum Hldgs Inc COM | $27.6M | 39.2K | 0.5% | ▲New New position | |
| 42 | Shopify Inc CL A SUB VTG SHS | $27.3M | 230.3K | 0.5% | ▼−3.1% Reduced · −7K sh | |
| 43 | CNX Res Corp COM | $25.9M | 672.4K | 0.5% | —Held | |
| 44 | Cbre Group Inc CL A | $25.0M | 184.3K | 0.4% | ▼−9.2% Reduced · −19K sh | |
| 45 | Duke Energy Corp New COM NEW | $24.8M | 189.5K | 0.4% | ▲92× Added · +187K sh | |
| 46 | Atlassian Corporation CL A | $24.6M | 360.0K | 0.4% | ▲+77% Added · +157K sh | |
| 47 | Meta Platforms Inc CL A | $24.5M | 42.9K | 0.4% | ▼−43% Reduced · −32K sh | |
| 48 | On Hldg AG NAMEN AKT A | $22.8M | 671.5K | 0.4% | ▲+108% Added · +348K sh | |
| 49 | Apellis Pharmaceuticals Inc COM | $22.4M | 556.0K | 0.4% | ▲+29% Added · +124K sh | |
| 50 | Applovin Corp COM CL A | $21.7M | 54.5K | 0.4% | ▲+39% Added · +15K 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 14, 2026 | 388 | $5.7B | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 13, 2026 | 388 | $5.0B | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Nov 14, 2025 | 694 | $7.8B | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Aug 13, 2025 | 641 | $8.9B | 13F-HR |
| Q1 2025 | Mar 31, 2025 | May 14, 2025 | 617 | $7.2B | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Feb 13, 2025 | 623 | $5.8B | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 13, 2024 | 640 | $5.2B | 13F-HR |
| Q2 2024 | Jun 30, 2024 | Aug 13, 2024 | 639 | $5.3B | 13F-HR |
| Q1 2024 | Mar 31, 2024 | May 13, 2024 | 626 | $5.7B | 13F-HR |
| Q4 2023 | Dec 31, 2023 | Feb 13, 2024 | 657 | $6.2B | 13F-HR |
| Q3 2023 | Sep 30, 2023 | Nov 14, 2023 | 665 | $5.7B | 13F-HR |
| Q2 2023 | Jun 30, 2023 | Aug 11, 2023 | 710 | $5.6B | 13F-HR |
| Q1 2023 | Mar 31, 2023 | May 12, 2023 | 699 | $4.8B | 13F-HR |
| Q4 2022 | Dec 31, 2022 | Feb 13, 2023 | 711 | $3.9B | 13F-HR |
| Q3 2022 | Sep 30, 2022 | Nov 14, 2022 | 716 | $3.5B | 13F-HR |
| Q2 2022 | Jun 30, 2022 | Aug 12, 2022 | 447 | $3.3B | 13F-HR |
| Q1 2022 | Mar 31, 2022 | May 13, 2022 | 432 | $3.8B | 13F-HR |
| Q4 2021 | Dec 31, 2021 | Feb 14, 2022 | 433 | $3.8B | 13F-HR |
| Q3 2021 | Sep 30, 2021 | Nov 12, 2021 | 435 | $3.5B | 13F-HR |
| Q2 2021 | Jun 30, 2021 | Aug 13, 2021 | 440 | $3.7B | 13F-HR |
| Q1 2021 | Mar 31, 2021 | May 17, 2021 | 408 | $3.2B | 13F-HR |
| Q4 2020 | Dec 31, 2020 | Feb 12, 2021 | 419 | $2.9B | 13F-HR |
| Q3 2020 | Sep 30, 2020 | Nov 12, 2020 | 413 | $2.4B | 13F-HR |
| Q2 2020 | Jun 30, 2020 | Aug 13, 2020 | 426 | $1.6B | 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.