ISTB — iShares Core 1-5 Year USD Bond ETF
As of Q2 2026, 13 SEC-registered investment managers reported holding ISTB (iShares Core 1-5 Year USD Bond ETF) in their latest 13F filings, with a combined reported value of $763.10M across 15.81M shares. That is +20.9% by share count (+2.73M shares) versus the previous quarter, while reported value moved +20.4%. Ownership is concentrated: the five largest holders account for 85.1% of reported value and the top ten for 100.0%.
Compared with the prior quarter, 1 opened new positions, 8 added to existing stakes, 4 trimmed, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
| Fund | Quarter | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|---|
| BlackRock Inc history | Q2 2026 | 7.76M | $374.19M | 0.01% | Add |
| Charles Schwab Investment Management history | Q2 2026 | 2.63M | $126.67M | 0.02% | Add |
| Morgan Stanley history | Q2 2026 | 1.12M | $54.02M | 0.00% | Add |
| UBS Group AG history | Q2 2026 | 984.00K | $47.48M | 0.01% | Add |
| JPMorgan Chase & Co history | Q2 2026 | 967.74K | $46.74M | 0.01% | New |
| Bank of America Corp history | Q2 2026 | 941.48K | $45.43M | 0.00% | Add |
| Wells Fargo & Co history | Q2 2026 | 711.80K | $34.34M | 0.01% | Add |
| BNY Mellon history | Q2 2026 | 443.09K | $21.38M | 0.00% | Add |
| Citadel Advisors history | Q1 2026 | 413.26K | $20.03M | 0.00% | Add |
| Goldman Sachs Group history | Q2 2026 | 213.39K | $10.30M | 0.00% | Reduce |
| PNC Financial Services history | Q2 2026 | 49.58K | $2.39M | 0.00% | Reduce |
| Renaissance Technologies history | Q4 2025 | 41.80K | $2.04M | 0.00% | Reduce |
| Northern Trust Corp history | Q4 2024 | 10.08K | $481.38K | 0.00% | Hold |
| Fidelity Management & Research (FMR) history | Q2 2026 | 2.43K | $117.39K | 0.00% | Reduce |
| Deutsche Bank AG history | Q4 2025 | 1.55K | $75.42K | 0.00% | Hold |
| Franklin Resources history | Q2 2026 | 994 | $47.96K | 0.00% | Add |
| Citigroup Inc history | Q2 2026 | 72 | $3.47K | 0.00% | Reduce |
| Millennium Management history | Q1 2023 | 8.77K | $414 | 0.00% | New |
New Positions (Q2 2026)
- JPMorgan Chase & Co 967.74K sh · $46.74M
Fully Exited (vs previous quarter)
- Citadel Advisors sold 413.26K sh · $20.03M
Fund Position History — shares by quarter (top 18 funds)
| Fund | Q3 2021 | Q4 2021 | Q1 2022 | Q2 2022 | Q3 2022 | Q4 2022 | Q1 2023 | Q2 2023 | Q3 2023 | Q4 2023 | Q1 2024 | Q2 2024 | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BlackRock Inc | — | — | — | — | — | — | — | — | — | — | — | — | 2.21M | 3.17M | 5.51M | 7.01M | 6.53M | 5.53M | 5.73M | 7.76M |
| Charles Schwab Investment Management | 3.55M | 3.57M | 3.53M | 3.52M | 2.46M | 2.39M | 2.35M | 2.30M | 3.94M | 3.75M | 3.22M | 3.12M | 3.06M | 3.07M | 2.98M | 2.40M | 2.37M | 2.35M | 2.57M | 2.63M |
| Morgan Stanley | 2.21M | 2.69M | 2.65M | 2.36M | 1.92M | 2.06M | 1.29M | 1.44M | 1.31M | 1.45M | 644.60K | 624.64K | 622.24K | 1.01M | 654.96K | 729.00K | 793.78K | 859.14K | 932.56K | 1.12M |
| UBS Group AG | 1.95M | 2.21M | 2.39M | 2.51M | 2.39M | 2.70M | 1.91M | 1.77M | 1.76M | 1.09M | 944.18K | 923.12K | 852.89K | 877.89K | 893.59K | 868.84K | 864.29K | 945.04K | 941.36K | 984.00K |
| JPMorgan Chase & Co | 1.50M | 1.28M | 207.27K | 432.30K | 330.11K | 1.36M | 314.50K | 336.82K | 497.82K | 635.58K | 1.90M | 693.02K | 700.76K | 766.73K | 749.37K | 930.89K | 859.88K | 1.07M | — | 967.74K |
| Bank of America Corp | 3.07M | 3.11M | 2.83M | 2.41M | 2.75M | 2.32M | 2.87M | 2.63M | 1.74M | 1.78M | 1.45M | 1.41M | 889.29K | 766.89K | 700.87K | 764.74K | 938.04K | 997.60K | 920.69K | 941.48K |
| Wells Fargo & Co | 1.23M | 1.41M | 1.17M | 1.02M | 1.04M | 754.69K | 895.94K | 896.10K | 796.34K | 751.83K | 738.54K | 539.34K | 555.46K | 598.27K | 558.39K | 626.16K | 648.51K | 670.14K | 684.94K | 711.80K |
| BNY Mellon | 7.95K | — | — | 83.58K | 35.17K | 34.71K | 33.97K | 34.30K | — | — | — | — | — | 198.69K | 236.80K | 268.23K | 319.97K | 385.97K | 439.89K | 443.09K |
| Goldman Sachs Group | 37.66K | 37.07K | 80.78K | 76.09K | 75.57K | 75.32K | 75.32K | 75.32K | 75.32K | 74.20K | 74.21K | 74.20K | 79.44K | 82.21K | 165.12K | 266.69K | 460.17K | 550.84K | 390.44K | 213.39K |
| PNC Financial Services | 99.43K | 129.46K | 176.94K | 187.13K | 200.75K | 197.55K | 188.29K | 207.80K | 182.36K | 195.60K | 208.67K | 75.38K | 78.87K | 75.68K | 61.77K | 56.33K | 52.08K | 52.22K | 54.35K | 49.58K |
| Fidelity Management & Research (FMR) | 2.54K | 3.70K | 1.35K | 10 | 136 | 109 | 1.14K | 672 | 749 | 1.80K | 1.93K | 433 | 2.84K | 241 | 2.65K | 3.58K | 2.82K | 2.80K | 5.71K | 2.43K |
| Franklin Resources | 625 | 625 | 625 | 625 | 625 | 575 | 575 | 575 | 575 | 575 | 575 | 575 | 575 | 575 | 575 | 575 | 575 | 575 | 575 | 994 |
| Citigroup Inc | 444 | 296 | 549 | 712 | 1.09K | 1.23K | 931 | 931 | 931 | 1.10K | 951 | 959 | 245 | 168 | 168 | 169 | 199 | 271 | 353 | 72 |
| Citadel Advisors | 361.56K | 571.58K | — | 73.49K | 224.98K | 598.55K | 82.96K | 6.48K | 246.12K | 7.25K | 546.49K | 87.74K | 74.45K | — | 100.00K | 201.01K | 55.25K | 38.94K | 413.26K | — |
| Deutsche Bank AG | — | — | — | — | — | — | — | — | — | — | 1.55K | 1.55K | 1.55K | 1.55K | 1.55K | 1.55K | 1.55K | 1.55K | — | — |
| Renaissance Technologies | — | 28.95K | — | — | — | — | — | — | 5.52K | — | 77.70K | 110.60K | 241.46K | 225.01K | 528.40K | 406.50K | 273.10K | 41.80K | — | — |
| Millennium Management | — | — | — | — | — | — | 8.77K | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Northern Trust Corp | 51.75K | 51.75K | 24.95K | — | — | — | — | 10.98K | 10.98K | 10.98K | 10.98K | 10.08K | 10.08K | 10.08K | — | — | — | — | — | — |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
Drag / scroll to zoom · Default shows the most recent year · Annotations come from quarterly fund actions in 13F filings · Hover a marker for details