IBKR
Interactive Brokers Group, Inc. · Financial Services · Investment - Banking & Investment Services
Momentum inputs (comparable managers):
holder breadth -5.0% ·
share flow +30.0% ·
net new positions -5.3%
— formula
Concentrated accumulation — rising shares among 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 | 173 | +9 | 286.65M | $24.96B | +10 | — |
| Q1 2026 | 166 | +1 | 263.90M | $17.67B | +5 | −5 |
| Q4 2025 | 164 | 0 | 283.24M | $18.22B | +1 | — |
| Q3 2025 | 23 | +2 | 167.25M | $11.51B | +2 | −1 |
| Q2 2025 | 19 | -1 | 140.59M | $7.79B | — | −1 |
| Q1 2025 | 17 | 0 | 12.58M | $2.08B | +1 | −1 |
| Q4 2024 | 17 | +1 | 11.35M | $2.00B | +2 | −1 |
| Q3 2024 | 15 | 0 | 6.58M | $916.95M | — | — |
| Q2 2024 | 15 | — | 8.18M | $1.00B | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 41.81M | — | $2.32B | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 2 | BlackRock ✦ (passive) | 40.24M | — | $2.23B | 0.0% | n/c | 1 | SEC ↗ ×21 |
| 3 | State Street Global Advisors ✦ (passive) | 15.13M | +0.3% | $838.41M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 4 | Wellington Management ✦ | 9.27M | +135.6% | $513.68M | 0.1% | ▲ Add | 5 | SEC ↗ ×6 |
| 5 | Geode Capital Management ✦ (passive) | 6.68M | -27.3% | $371.36M | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 6 | Fidelity (FMR) ✦ | 6.68M | — | $369.89M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 7 | Marshall Wace ✦ | 5.42M | +13.3% | $300.07M | 0.4% | ▲ Add | 5 | SEC ↗ ×5 |
| 8 | Norges Bank ✦ (passive) | 5.14M | -7.1% | $284.70M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 9 | Two Sigma Investments ✦ | 3.02M | +12.5% | $167.49M | 0.3% | ▲ Add | 5 | SEC ↗ |
| 10 | Soros Fund Management ✦ | 2.23M | +181.8% | $123.77M | 3.3% | ▲ Add | 5 | SEC ↗ |
| 11 | Renaissance Technologies ✦ | 1.98M | -30.2% | $109.65M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 12 | Millennium Management ✦ | 1.45M | -27.9% | $80.40M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 13 | Citadel Advisors ✦ | 931.80K | -64.9% | $51.63M | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 14 | T. Rowe Price ✦ | 374.15K | +4.7% | $20.73M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 15 | Gotham Asset Management ✦ | 109.72K | 0.0% | $6.08M | 0.0% | Held | 5 | SEC ↗ |
| 16 | D. E. Shaw & Co. ✦ | 49.64K | -42.2% | $2.75M | 0.0% | ▼ Trim | 5 | SEC ↗ ×2 |
| 17 | AQR Capital Management ✦ | 43.75K | -20.2% | $2.42M | 0.0% | ▼ Trim | 5 | SEC ↗ ×5 |
| 18 | GAMCO Investors ✦ | 23.08K | +14.7% | $1.28M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 19 | Fisher Asset Management ✦ | 9.13K | +9.1% | $505,944 | 0.0% | ▲ Add | 3 | 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
| Bridgewater Associates | $7.67M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 989 holders, 372.45M shares, $23.47B 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.
Open-market purchases (P)
Director · 25 sh @ 85.42 · $2,136
Director · 25 sh @ 94.53 · $2,363
Open-market sales (S)
No open-market insider sales in our coverage window.
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology