Trade Global Markets with Interactive Brokers

Interactive Brokers is a global electronic brokerage providing direct-access trading for stocks, options, futures, forex, bonds, and mutual funds. Clients access over 150 markets worldwide through the Trader Workstation platform, Client Portal web interface, or mobile apps. The firm operates on an agency model, routing orders electronically to exchanges for price improvement through its SmartRouting system. Interactive Brokers serves individual traders, financial advisors, hedge funds, and proprietary trading firms across 33 countries, offering multi-currency accounts in 26 currencies. The company is regulated by the SEC, FINRA, NFA, and equivalent regulatory bodies in each jurisdiction it operates. Founded by Thomas Peterffy in 1978, Interactive Brokers pioneered electronic trading and has grown into one of the largest electronic brokerages by daily average revenue trades, processing millions of transactions each day through automated systems built for reliability, speed, and cost efficiency at scale.

The Trader Workstation download is available from the Interactive Brokers website. After creating an account and completing the application process, navigate to the Trading Platforms section and select your operating system — TWS runs on Windows, macOS, and Linux. The installer includes the full platform with advanced charting, order management, and analytical tools. Interactive Brokers recommends a stable internet connection with at least 5 Mbps for optimal performance. The platform receives automatic updates with new features, market data improvements, and security enhancements. For paper trading, the same TWS installation connects to the simulated trading environment using your paper trading credentials. TWS is the flagship desktop application with the deepest feature set, supporting multiple monitor configurations, detachable windows, and customizable workspace layouts that can be saved and loaded across sessions. The download includes built-in tutorials and a searchable help system that guides new users through platform navigation while experienced traders can immediately access advanced functionality including the Mosaic market scanner, OptionTrader chain analysis, and integrated news and research feeds from dozens of premium providers.

Interactive Brokers margin rates rank among the most competitive in the brokerage industry, calculated as a benchmark rate plus a tiered spread that decreases as loan balances increase. For USD-denominated margin loans, the benchmark is typically the effective federal funds rate or an equivalent short-term rate. The tiered structure means a $25,000 loan might carry a rate 1.5% above benchmark, while a $1 million loan could be 1.0% above benchmark, and balances over $200 million approach benchmark plus 0.5%. Interactive Brokers applies this tiered structure across multiple currencies including EUR, GBP, JPY, CAD, and CHF. Margin interest is calculated daily and posted monthly. For current rates, visit the Interactive Brokers margin rates page. The platform provides real-time margin monitoring through the Risk Navigator tool, which calculates portfolio margin requirements under multiple scenarios and alerts traders when account equity approaches maintenance margin thresholds — a critical feature for active traders who manage leveraged positions across correlated asset classes and need to understand their true risk exposure at all times.

Interactive Brokers provides a fully functional paper trading account that simulates real market conditions. The paper trading environment replicates the live trading experience across TWS, Client Portal, and IBKR Mobile. You can test trading strategies, practice order entry, explore advanced order types, and learn platform navigation without financial risk. The paper account includes simulated margin, simulated commissions, and position tracking. Market data in paper trading can use either delayed data (free) or real-time market data subscriptions. Interactive Brokers designed the paper trading system to help new users build confidence with the platform before committing real capital, and experienced traders use it to validate algorithmic strategies before deploying them in live markets. Paper trading accounts receive a simulated cash balance that can be reset at any time, allowing repeated strategy testing under fresh starting conditions. The simulated environment uses the same order routing logic as live trading, meaning fills reflect realistic market conditions rather than idealized executions that might mislead strategy backtesting results.

Interactive Brokers client services can be reached at +1-203-618-5800 for US-based account inquiries, trading support, and technical assistance. Phone support operates during extended US market hours. For clients outside the United States, Interactive Brokers maintains regional phone numbers in major financial centers. The secure message center within Client Portal provides an additional channel for account-specific inquiries that require verification. Interactive Brokers also offers live chat support during market hours accessible through the website and Client Portal. For the complete list of contact methods and regional phone numbers, visit the contact Interactive Brokers page. For regulatory inquiries, the SEC maintains information about registered broker-dealers at sec.gov. The firm's headquarters at One Pickwick Plaza in Greenwich, Connecticut houses client services operations alongside technology development teams that build and maintain the trading infrastructure serving clients in more than 200 countries and territories worldwide.

Interactive Brokers operates in Canada through Interactive Brokers Canada Inc., a fully registered investment dealer regulated by the Investment Industry Regulatory Organization of Canada and a member of the Canadian Investor Protection Fund. Canadian clients can trade equities on the TSX, TSX Venture Exchange, and CSE alongside access to US and international markets. IBKR Canada supports registered accounts including RRSPs, TFSAs, RESPs, and LIRAs, plus non-registered cash and margin accounts denominated in CAD and USD. The full suite of trading platforms — TWS, Client Portal, and the Interactive Brokers app — is available to Canadian residents. For specific information about account opening requirements and available products, visit the IBKR Canada page. Canadian traders benefit from seamless cross-border access to US markets without needing separate brokerage accounts, with competitive foreign exchange conversion rates between CAD and USD for funding and trading activities.

IBKR Pro is Interactive Brokers' professional-tier account designed for active traders who require the lowest margin rates, unbundled commission pricing, and full platform capability. IBKR Pro features tiered pricing where per-share or per-contract costs decrease with higher trading volume. The account includes full Interactive Brokers API access supporting automated trading in Python, Java, C++, C#, and REST. IBKR Pro grants access to advanced order types, the Stock Yield Enhancement Program, and priority customer support. Professional accounts can trade on over 150 global markets including direct market access to exchanges across North America, Europe, and Asia-Pacific. The margin rates for IBKR Pro accounts are benchmarked to reference rates with tiered spreads, making them the most competitive in the brokerage industry for larger balances. Unlike simplified pricing models that bundle costs into wider spreads, IBKR Pro separates commissions from execution so traders see exactly what they pay for each component of their trading activity.