Closelook Records · Manager
Arrowstreet Capital
Two official windows, both partial: a sworn SEC 13F filing (US-listed longs only, as of quarter end, up to 45 days old) and holder-level European short registers (only positions above the 0.5% threshold). No return series is public, so no Closelook Rating — the record shows positioning, not performance.
The record, as shown at the source
| Metric | Value | As of | Source |
|---|---|---|---|
| 13F book (Q2 2026) | $225B across 1,878 positions | 2026-06-30, filed 13 Aug 2026 | SEC EDGAR 13F-HR ↗ |
| Top position | Alphabet — 4.6% of the 13F book | 2026-06-30, filed 13 Aug 2026 | SEC EDGAR 13F-HR ↗ |
| Disclosed short positions | 22 in the Germany and Norway registers | as published, 2026-10-23 | Bundesanzeiger / Finanstilsynet ↗ |
Figures are quoted exactly as the named source showed them on the stated date; they move daily — verify at the source before relying on them.
The Closelook battery insufficient data
No verifiable daily series is publicly available for this record yet, so we compute no battery and no rating — a missing series never becomes a low score. What would unlock it is described in the grade basis above and in the methodology.
The 13F-HR book as of 2026-06-30
$225.4B across 1878 issuers, reported for quarter end 2026-06-30 and filed 2026-08-13 — the figures below are already up to a quarter old by construction. 13F-HR covers long US-listed equity positions only, as of quarter end, filed up to 45 days later. Not the whole book.
| # | Issuer | Value | Weight |
|---|---|---|---|
| 1 | ALPHABET INC | $10.4B | 4.6% |
| 2 | MICROSOFT CORP | $10.3B | 4.6% |
| 3 | AMAZON COM INC | $9.6B | 4.3% |
| 4 | APPLE INC | $8.6B | 3.8% |
| 5 | NVIDIA CORPORATION | $7.0B | 3.1% |
| 6 | LAM RESEARCH CORP | $5.3B | 2.4% |
| 7 | SANDISK CORP | $4.9B | 2.2% |
| 8 | BROADCOM INC | $3.2B | 1.4% |
| 9 | ASML HLDG NV | $2.9B | 1.3% |
| 10 | PALANTIR TECHNOLOGIES INC | $2.4B | 1.1% |
Quarter rotation vs 2026-03-31
New positions (379)
- KINROSS GOLD CORP $0.7B
- STMICROELECTRONICS N V $0.3B
- TOWER SEMICONDUCTOR LTD $0.2B
- FLEX LTD $0.2B
- DELL TECHNOLOGIES INC $0.2B
- PROLOGIS INC. $0.1B
- ISHARES INC — MSCI BRAZIL ETF $0.1B
- CARDINAL HEALTH INC $0.1B
Exited (302)
- EXXON MOBIL CORP was $0.8B
- CHEVRON CORPORATION was $0.4B
- CONOCOPHILLIPS was $0.3B
- FIRST MAJESTIC SILVER CORP was $0.3B
- HOLOGIC INC was $0.2B
- PAN AMERN SILVER CORP was $0.2B
- ROYAL GOLD INC was $0.2B
- EBAY INC. was $0.2B
Added (shares) (809)
- MICROSOFT CORP +14%
- AMAZON COM INC +23.8%
- APPLE INC +53.7%
- NVIDIA CORPORATION +9.3%
- PALANTIR TECHNOLOGIES INC +96.4%
- CISCO SYS INC +10%
- MASTERCARD INCORPORATED +15.6%
- SALESFORCE INC +4.9%
Trimmed (shares) (548)
- ALPHABET INC -7.3%
- LAM RESEARCH CORP -6.9%
- SANDISK CORP -23.2%
- BROADCOM INC -54.1%
- ASML HLDG NV -10.8%
- ARISTA NETWORKS INC -10%
- BARRICK MNG CORP -27.5%
- UNITEDHEALTH GROUP INC -12.1%
Direction from aggregated share counts (CUSIP-matched across quarters); counts are complete; lists show the largest moves by value, up to eight each.
Aggregated by issuer from the information table at SEC EDGAR.
Disclosed shorts — the other side of the book
23 current net short positions published under this manager's legal entities in the official German (Bundesanzeiger) and Norwegian (Finanstilsynet) registers. Positions appear only above the 0.5% publication threshold, so these are a floor, not the full short book — and the 13F above shows only US-listed longs. As of 2026-10-31.
| Company | Register | Net short | Position date |
|---|---|---|---|
| Quantum Computing Inc | DE | 5.39% | 2026-10-06 |
| BORR DRILLING LIMITED | NO | 4.90% | 2026-10-29 |
| CARDLYTICS, INC. | DE | 3.78% | 2026-08-06 |
| KULR Technology Group Inc | DE | 2.71% | 2025-05-02 |
| Offerpad Solutions Inc. | DE | 2.07% | 2026-06-10 |
| LINK MOBILITY GROUP HOLDING | NO | 1.98% | 2026-10-14 |
| MAGNORA | NO | 1.90% | 2026-10-20 |
| Vossloh Aktiengesellschaft | DE | 1.20% | 2026-10-29 |
| CARDINAL INFRASTRUCTURE GROUP INC. | DE | 1.02% | 2026-10-02 |
| SALMON EVOLUTION ASA | NO | 0.98% | 2026-08-19 |
| RENK Group AG | DE | 0.90% | 2026-10-26 |
| GRIEG SEAFOOD | NO | 0.89% | 2026-10-15 |
All register positions: Short Registers board.
Fast lane — 5% stakes (Schedule 13D/G)
Filed with the SEC within days of crossing 5% of a company's shares (13D amendments within two business days) — far faster than the quarterly 13F. 13D signals possible activist intent, 13G a passive stake. Last 365 days, 6 filings, newest first.
| Filed | Company | Type | Stake as filed |
|---|---|---|---|
| 2026-08-13 | Dave and Buster's Entertainment, Inc | 13G · passive | 5.2% |
| 2026-05-15 | NerdWallet Inc | 13G · passive | 5.2% |
| 2026-05-15 | Fortuna Mining Corp · amendment | 13G · passive | 5% |
| 2026-05-15 | Dropbox Inc | 13G · passive | 5.4% |
| 2026-02-13 | Lovesac Co | 13G · passive | 5.3% |
| 2025-11-13 | FORTUNA MINING CORP. | 13G · passive | 6.4% |
The Closelook read
$225B of US-listed longs across 1,878 positions, 379 new positions and 302 exits against the prior quarter — and 22 disclosed short positions in Germany and Norway, the largest Quantum Computing Inc at 5.39%.
Arrowstreet Capital is one of the managers whose record is visible from both sides at once. The quarterly 13F shows the long book in US-listed equities — $225B across 1,878 positions for Q2 2026, with 379 new positions and 302 exits against the prior quarter. The largest position is Alphabet at 4.6% of the book. The European short registers show the other side: 22 current net short positions published under its legal entities in Germany and Norway, the largest in Quantum Computing Inc at 5.39%. Neither window is the whole book — the 13F omits shorts, non-US positions and anything below the reporting line; the registers show only shorts above 0.5% in two countries — which is why the record grades B+ and carries no rating: it documents positioning as filed, not returns.
Entry updated 23 Oct 2026 · All records · Famous Calls Record