Two Sigma Investments
John Overdeck & David Siegel (founders)
Latest 13F filed Aug 14, 2026 for the quarter ending Jun 30, 2026 · $138.12B across 5017 positions · view on SEC EDGAR
Top holdings
From the 13F filed Aug 14, 2026. Bars show each position's share of the reported book.
| # | Holding | Value | % of book | Shares |
|---|---|---|---|---|
| 1 | WESTERN DIGITAL CORP | $1.50B | 88,951,000 | |
| 2 | AMAZON COM INC | $1.36B | 5,716,287 | |
| 3 | NVIDIA CORPORATION | $1.26B | 6,284,574 | |
| 4 | APPLE INC | $1.21B | 4,176,413 | |
| 5 | TESLA INC | $1.20B | 2,861,596 | |
| 6 | BERKSHIRE HATHAWAY INC DEL | $1.14B | 2,274,395 | |
| 7 | JPMORGAN CHASE & CO | $968.1M | 2,957,516 | |
| 8 | MASTERCARD INCORPORATED | $945.6M | 1,841,139 | |
| 9 | COSTCO WHOLESALE CORPORATION | $941.3M | 1,006,231 | |
| 10 | ASML HLDG NV | $918.1M | 461,505 | |
| 11 | ADVANCED MICRO DEVICES INC | $880.3M | 1,515,419 | |
| 12 | CITIGROUP INC | $831.1M | 5,938,026 | |
| 13 | BOSTON SCIENTIFIC CORP | $826.2M | 19,359,023 | |
| 14 | ALPHABET INC | $802.9M | 2,246,651 | |
| 15 | LOCKHEED MARTIN CORP | $799.8M | 1,569,836 | |
| 16 | INTUITIVE SURGICAL INC | $787.1M | 1,979,128 | |
| 17 | SCHWAB CHARLES CORP | $777.4M | 8,425,755 | |
| 18 | KIMBERLY-CLARK CORP | $774.4M | 7,054,632 | |
| 19 | GOLDMAN SACHS GROUP INC | $762.1M | 753,545 | |
| 20 | TJX COS INC NEW | $756.1M | 4,990,475 | |
| 21 | T-MOBILE US INC | $745.4M | 4,443,802 | |
| 22 | ABBOTT LABORATORIES | $737.4M | 8,126,315 | |
| 23 | ROBLOX CORP | $731.3M | 13,448,649 | |
| 24 | INTERACTIVE BROKERS GROUP IN | $725.9M | 8,340,400 | |
| 25 | MORGAN STANLEY | $715.7M | 3,423,546 |
Showing top 25 of 5017 reported positions. Put/Call tags mark options positions.
Latest-quarter moves
From the most recent 13F vs. the prior quarter
- INTUIT$564.2M
- SELECT SECTOR SPDR TR$309.1M
- SPACE EXPLORATION TECHN CORP$303.3M
- INTERCONTINENTAL EXCHANGE IN$249.8M
- FORTIVE CORP$196.1M
- SUPER MICRO COMPUTER INC$163.9M
- ALPHABET INC$155.0M
- COMCAST CORP NEW$120.3M
- NXP SEMICONDUCTORS N V$96.4M
- GAMESTOP CORP$89.1M
- LYONDELLBASELL INDUSTRIES NV$84.7M
- ASCENDIS PHARMA A/S$81.6M
- BERKSHIRE HATHAWAY INC DEL$1.14B
- MASTERCARD INCORPORATED$945.6M
- COSTCO WHOLESALE CORPORATION$941.3M
- ASML HLDG NV$918.1M
- ADVANCED MICRO DEVICES INC$880.3M
- CITIGROUP INC$831.1M
- BOSTON SCIENTIFIC CORP$826.2M
- LOCKHEED MARTIN CORP$799.8M
- INTUITIVE SURGICAL INC$787.1M
- SCHWAB CHARLES CORP$777.4M
- KIMBERLY-CLARK CORP$774.4M
- GOLDMAN SACHS GROUP INC$762.1M
- WESTERN DIGITAL CORP$1.50B
- AMAZON COM INC$1.36B
- NVIDIA CORPORATION$1.26B
- APPLE INC$1.21B
- TESLA INC$1.20B
- JPMORGAN CHASE & CO$968.1M
- ALPHABET INC$802.9M
- TJX COS INC NEW$756.1M
- MORGAN STANLEY$715.7M
- PROGRESSIVE CORP$662.0M
- CLOUDFLARE INC$634.3M
- MICRON TECHNOLOGY INC$617.7M
- BLOOM ENERGY CORP$194.2M
- SELECT SECTOR SPDR TR$172.1M
- SELECT SECTOR SPDR TR$111.5M
- CENTERPOINT ENERGY INC$94.7M
- ISHARES TR$93.1M
- VENTAS RLTY LTD PARTNERSHIP$84.7M
- CHARTER COMMUNICATIONS INC$65.2M
- JAZZ INVESTMENTS I LTD$64.4M
- ICICI BANK LIMITED$64.4M
- ISHARES TR$62.5M
- ECOLAB INC$58.5M
- CNX RES CORP$56.7M
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Questions people ask
What did Two Sigma Investments own in its latest 13F?
The 13F filed Aug 14, 2026 for the quarter ending Jun 30, 2026 listed 5017 positions worth $138.12B. The largest was WESTERN DIGITAL CORP at $1.50B, 1.1% of the reported portfolio.
When did Two Sigma Investments last file a 13F?
On Aug 14, 2026, covering the quarter that ended Jun 30, 2026. The next one is due within 45 days of the next quarter end, so the positions here can be up to 45 days old on the day they are published.
What did Two Sigma Investments buy and sell last quarter?
Compared with the prior 13F, the latest filing shows 1081 new positions, 1943 positions added to, 1774 trimmed and 610 sold out entirely. Each is listed above with its size.
Does this page show everything Two Sigma Investments owns?
No. A 13F covers long positions in US-listed stocks, certain options and convertible notes. It leaves out short positions, cash, bonds, private holdings and shares listed outside the US, so the total here is not the fund's full size.
Data from SEC EDGAR filings. 13Fs are quarterly and lag by up to 45 days, cover only US-listed long positions and certain options, and exclude shorts and non-US holdings. Not investment advice.