Interactive Brokers Group, Inc.
Ticker: IBKRFinancialsBanks & BrokersS&P 500The business
Interactive Brokers Group, Inc. (NASDAQ: IBKR) operates as an automated global broker providing custody and brokerage services to hedge funds, mutual funds, exchange-traded funds, registered investment advisors, proprietary trading groups, introducing brokers, and individual investors worldwide. The company's website is www.interactivebrokers.com.
Founded in 1977 as a market making business on the floor of the American Stock Exchange, Interactive Brokers has evolved into a technology-driven brokerage platform specializing in electronic execution and processing of trades across multiple asset classes. The company executes trades in stocks, options, futures, foreign exchange instruments, bonds, mutual funds, ETFs, precious metals, and forecast contracts on more than 170 electronic exchanges and market centers spanning 40 countries and 29 currencies.
The company serves approximately 4.4 million institutional and individual brokerage customers through proprietary trading platforms including Trader WorkstationSM, IBKR Desktop, IBKR Mobile, and IBKR Client Portal. Core service offerings include IBKR ProSM for sophisticated investors and IBKR LiteSM providing commission-free trading on U.S. exchange-listed stocks and ETFs. The IBKR Universal AccountSM consolidates trading across multiple asset classes and currencies from a single platform, complemented by cash management services including deposit options, check deposits, and an insured bank deposit sweep program providing up to $5 million in FDIC insurance coverage.
Interactive Brokers maintains a global presence with headquarters in Greenwich, Connecticut and offices in Chicago, Canada, the United Kingdom, Ireland, Switzerland, Hungary, Dubai, India, Hong Kong, Shanghai, Japan, Singapore, and Australia. As of December 31, 2025, the company employed 3,182 people worldwide.
The company's competitive advantages center on proprietary technology developed internally over four decades, enabling automated order routing, real-time risk management, and seamless integration with global trading venues. The IB SmartRoutingSM system continuously searches for optimal execution prices across multiple markets. Interactive Brokers joined the S&P 500 Index in August 2025, reflecting recognition of its financial performance, market capitalization, technology-driven business model, and position as a leading global automated brokerage platform.
- Sector
- Financials
- Industry
- Banks & Brokers
- HQ
- GREENWICH, CT
- FY end
- 12-31
- CIK
- 1381197
- SIC
- 6211
Ownership
Who holds Interactive Brokers Group, Inc. — across funds, superinvestors and bonds · N-PORT 2026Q2 · 13F 2026-06-30
Top fund holders
| Fund | % of fund | Value |
|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VTI · VANGUARD INDEX FUNDS | 0.05% | $1.17B |
| VANGUARD 500 INDEX FUND VOO · VANGUARD INDEX FUNDS | 0.06% | $1.00B |
| iShares Core S&P 500 ETF IVV · iShares Trust | 0.06% | $533.37M |
| Fidelity 500 Index Fund FXAIX · Fidelity Concord Street Trust | 0.06% | $495.67M |
| State Street(R) SPDR(R) S&P 500(R) ETF Trust SPY | 0.06% | $469.91M |
Superinvestors in Interactive Brokers Group, Inc.
Share of each manager's reported 13F portfolio.
Fund ownership is a subset of institutional 13F ownership — the two describe overlapping populations and must not be added together.
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