Arrowstreet Capital, Limited Partnership
Reported US equity positions for Q1 2026 — $184.8B across 1,810 positions.
| Holding | Reported value | Share of portfolio | Shares |
|---|---|---|---|
| MSFT Microsoft Corporation | $9.0B | 4.9% | 24,264,779 |
| AMZN Amazon.com, Inc. | $6.8B | 3.7% | 32,578,171 |
| AVGO Broadcom Inc. | $5.8B | 3.1% | 18,739,006 |
| NVDA NVIDIA Corporation | $5.5B | 3.0% | 31,781,583 |
| AAPL Apple Inc. | $4.9B | 2.7% | 19,443,190 |
| GOOGL Alphabet Inc. | $4.9B | 2.7% | 17,040,373 |
| GOOG Alphabet Inc. - Class C Capital Stock | $4.2B | 2.3% | 14,581,870 |
| LRCX Lam Research Corporation | $2.8B | 1.5% | 13,179,818 |
| CRM Salesforce, Inc. | $2.4B | 1.3% | 12,659,217 |
| N07059210 Asml Hldg Nv | $2.2B | 1.2% | 1,641,565 |
| B Barrick Mining Corporation | $1.9B | 1.0% | 47,425,025 |
| MA Mastercard Incorporated | $1.8B | 1.0% | 3,666,018 |
| SNDK Sandisk Corp | $1.8B | 1.0% | 2,823,970 |
| SU Suncor Energy Inc. | $1.7B | 0.9% | 26,085,360 |
| INTU Intuit Inc. | $1.7B | 0.9% | 3,896,561 |
| ADBE Adobe Inc. | $1.7B | 0.9% | 6,792,275 |
| PLTR Palantir Technologies Inc. | $1.5B | 0.8% | 10,446,959 |
| APH Amphenol Corporation | $1.5B | 0.8% | 11,884,529 |
| CRC California Resources Corporation | $1.4B | 0.8% | 28,956,345 |
| DIS The Walt Disney Company | $1.4B | 0.7% | 14,272,449 |
| AEM Agnico Eagle Mines Limited | $1.4B | 0.7% | 6,745,089 |
| CSCO Cisco Systems, Inc. | $1.4B | 0.7% | 17,585,957 |
| KLAC KLA Corporation | $1.2B | 0.6% | 791,279 |
| TJX The TJX Companies, Inc. | $1.2B | 0.6% | 7,228,397 |
| MCK McKesson Corporation | $1.1B | 0.6% | 1,312,164 |
| MCD McDonald's Corporation | $1.1B | 0.6% | 3,637,785 |
| GEV GE Vernova Inc. | $1.1B | 0.6% | 1,276,288 |
| BKNG Booking Holdings Inc. | $1.1B | 0.6% | 261,383 |
| ANET Arista Networks, Inc. | $1.0B | 0.6% | 8,459,045 |
| HCA HCA Healthcare, Inc. | $1.0B | 0.6% | 2,165,258 |
| ISRG Intuitive Surgical, Inc. | $970.6M | 0.5% | 2,105,544 |
| UNH UnitedHealth Group Incorporated Common Stock (DE) | $926.9M | 0.5% | 3,425,381 |
| G0593M107 Astrazeneca PLC | $914.5M | 0.5% | 4,652,246 |
| NTR Nutrien Ltd. | $892.8M | 0.5% | 11,828,890 |
| BSX Boston Scientific Corporation | $871.7M | 0.5% | 13,891,668 |
| MU Micron Technology, Inc. | $838.4M | 0.5% | 2,481,646 |
| G54950103 Linde PLC | $805.5M | 0.4% | 1,624,728 |
| FTNT Fortinet, Inc. | $788.7M | 0.4% | 9,651,024 |
| XOM ExxonMobil Holdings Corporation | $766.3M | 0.4% | 4,516,943 |
| CI The Cigna Group | $763.0M | 0.4% | 2,860,289 |
| VALE VALE S.A. American Preferred | $762.8M | 0.4% | 47,947,703 |
| CME CME Group Inc. | $762.1M | 0.4% | 2,580,320 |
| ADSK Autodesk, Inc. | $752.8M | 0.4% | 3,144,627 |
| H42097107 Ubs Group Ag | $728.3M | 0.4% | 18,850,928 |
| AMT American Tower Corporation (REIT) | $724.1M | 0.4% | 4,195,978 |
| ORLY O'Reilly Automotive, Inc. | $712.8M | 0.4% | 7,721,557 |
| VLO Valero Energy Corporation | $702.3M | 0.4% | 2,842,339 |
| WPM Wheaton Precious Metals Corp Common Shares (Canada) | $698.2M | 0.4% | 5,325,357 |
| DHR Danaher Corporation | $690.1M | 0.4% | 3,639,630 |
| PM Philip Morris International Inc | $682.7M | 0.4% | 4,129,127 |
| VRT Vertiv Holdings, LLC Class A | $678.9M | 0.4% | 2,709,276 |
| NEM Newmont Corporation | $678.4M | 0.4% | 6,267,116 |
| SHEL Shell PLC American Preferred | $669.3M | 0.4% | 7,196,400 |
| HLT Hilton Worldwide Holdings Inc. | $661.7M | 0.4% | 2,175,965 |
| FCX Freeport-McMoRan, Inc. | $660.8M | 0.4% | 11,241,970 |
| G0378L100 Anglogold Ashanti PLC | $620.9M | 0.3% | 6,386,503 |
| CLS Celestica, Inc. | $617.1M | 0.3% | 2,190,413 |
| MO Altria Group, Inc. | $607.3M | 0.3% | 9,202,240 |
| BP BP p.l.c. | $602.3M | 0.3% | 12,813,984 |
| MRSH Marsh | $599.2M | 0.3% | 3,454,586 |
Long US equity positions only, as filed. 13F does not cover short positions, cash, bonds or non-US listings, so this is not the whole portfolio.
What changed last quarter
| Holding | Change | Now | Was | Shares |
|---|---|---|---|---|
| MSFT Microsoft Corporation | Add | $9.0B | $7.1B | +64% |
| AMZN Amazon.com, Inc. | Add | $6.8B | $5.7B | +32% |
| AVGO Broadcom Inc. | Add | $5.8B | $3.0B | +118% |
| NVDA NVIDIA Corporation | Add | $5.5B | $5.0B | +19% |
| AAPL Apple Inc. | Add | $4.9B | $4.7B | +12% |
| GOOGL Alphabet Inc. | Add | $4.9B | $2.8B | +91% |
| GOOG Alphabet Inc. - Class C Capital Stock | Add | $4.2B | $2.6B | +76% |
| LRCX Lam Research Corporation | Trim | $2.8B | $2.3B | -1% |
| CRM Salesforce, Inc. | Add | $2.4B | $1.5B | +130% |
| N07059210 Asml Hldg Nv | Add | $2.2B | $1.7B | +6% |
| MA Mastercard Incorporated | Add | $1.8B | $1.8B | +18% |
| SNDK Sandisk Corp | Trim | $1.8B | $825.6M | -19% |
| SU Suncor Energy Inc. | Add | $1.7B | $522.8M | +121% |
| INTU Intuit Inc. | Add | $1.7B | $1.3B | +103% |
| ADBE Adobe Inc. | Add | $1.7B | $2.2B | +9% |
| PLTR Palantir Technologies Inc. | Add | $1.5B | $492.0M | +277% |
| DIS The Walt Disney Company | Add | $1.4B | $1.4B | +14% |
| AEM Agnico Eagle Mines Limited | Trim | $1.4B | $1.5B | -22% |
| CSCO Cisco Systems, Inc. | Trim | $1.4B | $1.7B | -22% |
| KLAC KLA Corporation | Add | $1.2B | $941.1M | +2% |
| MCK McKesson Corporation | Trim | $1.1B | $1.1B | -5% |
| MCD McDonald's Corporation | Add | $1.1B | $948.8M | +17% |
| GEV GE Vernova Inc. | Trim | $1.1B | $860.4M | -3% |
| BKNG Booking Holdings Inc. | Add | $1.1B | $1.2B | +20% |
| ANET Arista Networks, Inc. | Trim | $1.0B | $1.2B | -10% |
| HCA HCA Healthcare, Inc. | Trim | $1.0B | $1.1B | -6% |
| ISRG Intuitive Surgical, Inc. | Add | $970.6M | $610.6M | +95% |
| UNH UnitedHealth Group Incorporated Common Stock (DE) | Trim | $926.9M | $1.2B | -8% |
| NTR Nutrien Ltd. | Trim | $892.8M | $843.7M | -13% |
| BSX Boston Scientific Corporation | Add | $871.7M | $1.1B | +26% |
| MU Micron Technology, Inc. | Trim | $838.4M | $805.1M | -12% |
| G54950103 Linde PLC | Add | $805.5M | $538.6M | +29% |
| FTNT Fortinet, Inc. | Add | $788.7M | $409.0M | +87% |
| CI The Cigna Group | Trim | $763.0M | $814.3M | -3% |
| VALE VALE S.A. American Preferred | Add | $762.8M | $542.0M | +15% |
| CME CME Group Inc. | Trim | $762.1M | $839.7M | -16% |
| ADSK Autodesk, Inc. | Add | $752.8M | $884.9M | +5% |
| H42097107 Ubs Group Ag | Add | $728.3M | $814.9M | +8% |
| AMT American Tower Corporation (REIT) | Trim | $724.1M | $749.5M | -2% |
| ORLY O'Reilly Automotive, Inc. | Trim | $712.8M | $731.1M | -4% |
New and exited positions are only shown for managers whose entire filed portfolio fits inside the positions stored here. For a manager filing more than that, a holding leaving the stored set is indistinguishable from a holding being sold, so those are reported as adds and trims only.
What a 13F is
Any institutional manager exercising discretion over more than $100 million in US-listed equities must file a Form 13F with the SEC within 45 days of each quarter end, listing what they held on the last day of that quarter. The threshold was set in 1975 and has never been raised, so the filer population now runs to several thousand.
The four things it does not tell you
- It is stale. A filing describes positions as of quarter end and can arrive 45 days later. A manager who sold everything in week one of the new quarter files the same document as one who held.
- Long US equities only. No short positions, no cash, no bonds, no commodities, no foreign listings. A fund that looks heavily long in a 13F may be hedged in instruments that never appear.
- Not the whole firm. Assets are reported by the entity with discretion, so one manager can file under several CIKs, and the figure here is what that entity reported.
- Confidential treatment exists. A manager can apply to delay disclosing a position while building it. Those holdings appear later, if at all.
Why the biggest filers are not the interesting ones
The largest managers by reported value are index providers — they hold nearly everything, in proportion to the indices they track, because clients asked them to. Reading their filings for conviction is a category error. The filings worth attention are concentrated ones, where a small number of positions make up most of the portfolio, since that reflects a decision rather than a mandate.
The share-of-portfolio column is the one to read for this. A position that is 15% of a fund says something; the same dollar amount at 0.2% of an index tracker does not.
Where this comes from
The SEC's own quarterly Form 13F structured data sets, parsed here rather than bought from a vendor. Holdings are identified in the filings by CUSIP, and the mapping from CUSIP to ticker is the awkward part — that identifier is licensed rather than public, so the mapping is resolved through OpenFIGI and built up over time. Around 95% of reported value currently sits on a resolved ticker; the rest shows its CUSIP.
The rest of the section is on the Markets overview — including insider transactions, which are the same idea at the individual level, and the correlation finder, where each ticker's page carries its institutional ownership.