IUSB
iShares Core Universal USD Bond ETF · Financial Services · Asset Management - Bonds
Momentum inputs (comparable managers):
holder breadth -14.3% ·
share flow -0.5% ·
net new positions -16.7%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 62 | +3 | 670.24M | $30.95B | +5 | −2 |
| Q1 2026 | 60 | +4 | 569.85M | $26.29B | +6 | −2 |
| Q4 2025 | 56 | -2 | 539.52M | $25.11B | — | −2 |
| Q3 2025 | 10 | +1 | 127.62M | $5.96B | +1 | — |
| Q2 2025 | 6 | -1 | 63.82M | $2.95B | — | −1 |
| Q1 2025 | 5 | +3 | 530.37K | $24.44M | +3 | — |
| Q4 2024 | 2 | 0 | 67.97K | $3.07M | — | — |
| Q3 2024 | 2 | -1 | 57.74K | $2.72M | — | −1 |
| Q2 2024 | 3 | — | 79.78K | $3.61M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 62.13M | — | $2.87B | 0.1% | n/c | 1 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 62.13M | — | $2.87B | 0.1% | n/c | 1 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 62.13M | — | $2.87B | 0.1% | n/c | 1 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 62.13M | — | $2.87B | 0.1% | n/c | 1 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 62.13M | — | $2.87B | 0.1% | n/c | 1 | SEC ↗ |
| 6 | Fidelity (FMR) ✦ | 1.48M | — | $68.28M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | Renaissance Technologies ✦ | 160.90K | -18.0% | $7.44M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | AQR Capital Management ✦ | 41.09K | -31.8% | $1.90M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 9 | Gotham Asset Management ✦ | 12.89K | +3.3% | $595,812 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | Fisher Asset Management ✦ | 5.09K | -9.9% | $235,303 | 0.0% | ▼ Trim | 5 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Citadel Advisors | $11.78M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 834 holders, 747.08M shares, $33.30B 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.