Prices delayed by 15 minutes
The series is stated in the current share scale after splits; dividends are not included in the price
| Date | Open | High | Low | Close | Volume, shares |
|---|---|---|---|---|---|
| September 16, 2026 | 88.99 | 89.09 | 84.96 | 86.74 | 4m |
| September 15, 2026 | 90.20 | 90.48 | 87.50 | 88.80 | 5m |
| September 14, 2026 | 90.00 | 90.94 | 89.08 | 90.75 | 4m |
| September 11, 2026 | 90.71 | 92.31 |
Based on reports through December 31, 2025
Share count is a period average, so market cap is approximate.
Interactive Brokers is a broker for professionals: low commissions, access to dozens of exchanges, minimal marketing.
Customers are active traders, small funds and affluent private investors worldwide. The company competes not on beginner-friendliness but on execution price and breadth of access: one account trades equities, bonds, futures and currencies across dozens of markets.
Income combines commissions with, more importantly, interest: client balances and margin lending supply a substantial part of profit when rates are high. Costs are low thanks to automation — the company has historically run a small staff against an enormous transaction volume. The dividend is small. When rates fall that income shrinks automatically and trading volume returns to the fore.
Address:ONE PICKWICK PLAZA, GREENWICH, CT, 06830, US
| 787m |
| BLKBlackRock, Inc. | 1,054 | +1.61 % | 617m |
| RJFRaymond James Financial, Inc. | 163.77 | −0.49 % | 189m |
| MKTXMarketAxess Holdings, Inc. | 163.50 | +0.09 % | 163m |
| BULLWebull Corporation | 7.65 | −0.59 % | 144m |
| 89.45 |
| 91.37 |
| 3m |
| September 10, 2026 | 89.06 | 90.24 | 88.74 | 89.42 | 3m |
| September 09, 2026 | 90.99 | 91.86 | 90.25 | 90.28 | 3m |
| September 08, 2026 | 91.76 | 93.29 | 90.87 | 90.97 | 2m |
| September 04, 2026 | 91.55 | 92.85 | 91.14 | 92.62 | 2m |
| September 03, 2026 | 89.83 | 93.27 | 89.77 | 92.95 | 5m |
| September 02, 2026 | 90.00 | 91.35 | 88.53 | 89.12 | 4m |
| September 01, 2026 | 94.63 | 94.90 | 90.03 | 90.39 | 5m |
| August 31, 2026 | 95.50 | 97.89 | 94.43 | 97.29 | 4m |
| August 28, 2026 | 96.61 | 97.72 | 95.46 | 95.84 | 2m |
| August 27, 2026 | 96.88 | 97.34 | 95.76 | 96.55 | 5m |
| August 26, 2026 | 97.63 | 97.78 | 94.81 | 97.02 | 3m |
| August 25, 2026 | 93.55 | 98.75 | 92.80 | 98.19 | 5m |
| August 24, 2026 | 93.86 | 94.78 | 92.49 | 93.05 | 4m |
| August 21, 2026 | 90.80 | 94.22 | 90.31 | 93.87 | 6m |
| August 20, 2026 | 91.41 | 91.71 | 89.67 | 89.85 | 3m |
| August 19, 2026 | 90.99 | 91.43 | 88.92 | 90.54 | 3m |