IWM
iShares Russell 2000 ETF · Financial Services · Asset Management
Momentum inputs (comparable managers):
holder breadth +14.3% ·
share flow -0.9% ·
net new positions +12.5%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 123 | +3 | 207.92M | $62.43B | +9 | −6 |
| Q1 2026 | 121 | -6 | 231.29M | $57.30B | +5 | −11 |
| Q4 2025 | 126 | 0 | 215.78M | $53.09B | +1 | −1 |
| Q3 2025 | 21 | +2 | 63.83M | $15.45B | +2 | — |
| Q2 2025 | 16 | +2 | 15.17M | $3.27B | +3 | −1 |
| Q1 2025 | 11 | 0 | 3.84M | $766.52M | +2 | −2 |
| Q4 2024 | 11 | 0 | 3.12M | $690.40M | +1 | −1 |
| Q3 2024 | 11 | -1 | 3.05M | $674.01M | — | −1 |
| Q2 2024 | 12 | — | 3.44M | $697.71M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 9.15M | — | $1.98B | 0.0% | n/c | 1 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 9.15M | — | $1.98B | 0.0% | n/c | 1 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 9.15M | — | $1.98B | 0.0% | n/c | 1 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 9.15M | — | $1.98B | 0.0% | n/c | 1 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 9.15M | — | $1.98B | 0.0% | n/c | 1 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 9.15M | — | $1.98B | 0.0% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 9.15M | — | $1.98B | 0.0% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 9.15M | — | $1.98B | 0.0% | n/c | 1 | SEC ↗ |
| 9 | Fidelity (FMR) ✦ | 2.26M | — | $488.41M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | Fidelity (FMR) ✦ | 2.26M | — | $488.41M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | Wellington Management ✦ | 955.95K | -13.0% | $206.28M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 12 | Wellington Management ✦ | 955.95K | -13.0% | $206.28M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 13 | Wellington Management ✦ | 955.95K | -13.0% | $206.28M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 14 | Wellington Management ✦ | 955.95K | -13.0% | $206.28M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 15 | Wellington Management ✦ | 955.95K | -13.0% | $206.28M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 16 | Wellington Management ✦ | 955.95K | -13.0% | $206.28M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 17 | Citadel Advisors ✦ | 747.94K | -51.1% | $161.40M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 18 | Citadel Advisors ✦ | 747.94K | -51.1% | $161.40M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 19 | D. E. Shaw & Co. ✦ | 715.95K | +319.2% | $154.49M | 0.2% | ▲ Add | 5 | SEC ↗ |
| 20 | D. E. Shaw & Co. ✦ | 715.95K | +319.2% | $154.49M | 0.2% | ▲ Add | 5 | SEC ↗ |
| 21 | D. E. Shaw & Co. ✦ | 715.95K | +319.2% | $154.49M | 0.2% | ▲ Add | 5 | SEC ↗ |
| 22 | Two Sigma Investments ✦ | 677.61K | New | $146.22M | 0.3% | New | 1 | SEC ↗ |
| 23 | Starboard Value ✦ | 340.00K | New | $73.37M | 1.3% | New | 1 | SEC ↗ |
| 24 | AQR Capital Management ✦ | 125.18K | +2.8% | $27.01M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 25 | AQR Capital Management ✦ | 125.18K | +2.8% | $27.01M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 26 | Millennium Management ✦ | 77.51K | -90.4% | $16.73M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 27 | The Vanguard Group ✦ (passive) | 45.41K | — | $9.80M | 0.0% | n/c | 1 | SEC ↗ |
| 28 | The Vanguard Group ✦ (passive) | 45.41K | — | $9.80M | 0.0% | n/c | 1 | SEC ↗ |
| 29 | Arrowstreet Capital ✦ | 28.88K | -1.0% | $6.23M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 30 | Gotham Asset Management ✦ | 14.88K | +43.4% | $3.21M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 31 | T. Rowe Price ✦ | 8.28K | -10.9% | $1.79M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 32 | T. Rowe Price ✦ | 8.28K | -10.9% | $1.79M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 33 | GAMCO Investors ✦ | 7.11K | New | $1.53M | 0.0% | New | 1 | SEC ↗ |
| 34 | Fisher Asset Management ✦ | 3.32K | -12.5% | $715,870 | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 35 | Harris Associates (Oakmark) ✦ | 783 | +46.9% | $168,893 | 0.0% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Two Sigma Investments | $146.22M | 0.3% |
| Starboard Value | $73.37M | 1.3% |
| GAMCO Investors | $1.53M | 0.0% |
Exited
| Renaissance Technologies | $13.03M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 2,547 holders, 299.56M shares, $71.06B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.