Interactive Brokers Trading Hours: Premarket, After-Hours & Overnight

Last verified against Interactive Brokers's published documentation: April 2026.

Does Interactive Brokers Offer Overnight Trading?

Yes. IBKR offers overnight trading from 8:00 PM to 4:00 AM ET on over 10,000 US stocks and ETFs through its IBKR ATS and partnered venues.

Eligible Securities

Over 10,000 US-listed stocks and ETFs for extended hours. Overnight trading includes most of the same symbols, but some thinly-traded securities are excluded.

Supported Order Types During Extended Hours

Limit orders for extended hours. IBKR supports a wider range of order types than most brokers, but market orders are still restricted outside regular hours.

Do I Need to Enable Extended Trading?

Yes. You must enable extended-hours trading permissions in TWS or Client Portal. IBKR also requires acknowledgment of the risks specific to after-hours and overnight trading.

Do Orders Carry Between Sessions?

GTC orders carry across sessions. Day orders expire at session end. IBKR distinguishes between regular, extended-hours, and overnight sessions — configure time-in-force accordingly.

Main Risks

Extended-hours trading carries higher volatility, lower liquidity, and wider bid-ask spreads regardless of broker. Prices in premarket or after-hours may differ significantly from regular-session prices. Always use limit orders to control your execution price.

Source: interactivebrokers.com/en/trading/extended-hours.php. Verified: April 2026. Broker offerings change — always confirm with Interactive Brokers directly.