Interactive Brokers review

Interactive Brokers has the deepest feature set here, and its IBKR Lite plan brings the cost of US stock and ETF trades to $0. Fractional shares are available on more than 10,500 US stocks and ETFs from USD 1, the largest range on this list, and IBKR says it pays 3.38% on uninvested USD cash with margin loans starting at 4.38%. A no-transaction-fee program covers over 150 ETFs, and recurring investments let you automate monthly buys. IBKR also lists overnight trading among its features, and the account reaches markets well beyond the US. The trade-off is complexity. IBKR offers Client Portal, IBKR Desktop, IBKR Mobile, Trader Workstation and the simpler IBKR GlobalTrader app, plus Lite and Pro pricing, so a beginner has to make more choices than at Fidelity or Robinhood. Starting on GlobalTrader or IBKR Mobile keeps things manageable, and Trader Workstation is there when you outgrow it.

Who it is for

Cost-conscious investors who want global markets, fractional shares on 10,500+ US securities and interest on idle cash.

Price

IBKR Lite: $0 commissions on US stocks and ETFs; Pro plans use fixed or tiered pricing.

$0 commissions on US stocks and ETFs with IBKR Lite.
Quoted from the vendor pricing page on November 10, 2026.

Key features

• $0 commissions on US stocks and ETFs with IBKR Lite
• Fractional shares on 10,500+ US stocks and ETFs from USD 1
• Interest on uninvested USD cash and margin loans from 4.38%
• Platforms from IBKR GlobalTrader and IBKR Mobile to Trader Workstation
• Overnight trading and recurring investments

Strengths and weaknesses

• Strength: Largest fractional share list on this list
• Strength: Pays interest on uninvested cash
• Strength: Access to stocks around the world
• Weakness: Many platforms and pricing plans to choose between
• Weakness: Trader Workstation has a steep learning curve
• Weakness: IBKR Lite commission-free rules have volume conditions for some order types

Key facts

• Stock and ETF commission: $0 with IBKR Lite
• Fractional shares: 10,500+ US stocks and ETFs
• Margin rate: From 4.38%

Where it ranks

Interactive Brokers is No. 5 in our Best Investing Apps verdict.