To trade during pre-market hours with Interactive Brokers (IBKR), you need to enable the "Fill Outside RTH" (Regular Trading Hours) option when placing your order. This allows your order to be filled outside regular trading hours, including pre-market. Here is how to do it on different IBKR platforms:
- Mosaic TWS (Trader Workstation):
- In the Order Entry panel/window, find the Time-in-Force (TIF) drop-down menu
- Check the box for "Fill Outside RTH"
- Classic TWS:
- On an Order Row, click the Time-in-Force (TIF) drop-down
- Check the "Fill Outside RTH" checkbox
- Client Portal:
- Click the Trade menu and select a product type to open the Order Ticket
- Look for the "Outside RTH" option to the right of the Time-In-Force field
- Select "YES" to enable trading outside regular hours
- IBKR Mobile:
- WIthin the Order Ticket, toggle "Outside RTH" to the on position
Note
- For US Stocks, Outside Regular Trading Hours begins at 4:00 AM EST. US Stock Premarket session hours are 4:00 EST thru 09:30 EST. The Regular Trading Hours session then starts at 09:30 EST and lasts until 16:00 EST. The After Market session is from 16:00 EST until 20:00 EST.
- Be aware that trading outside regular hours may have different liquidity and volatility characteristics compared to regular market hours.
Additional Information