Clients can enable trading outside regular trading hours from the Global Configuration menu in TWS. To do this, open TWS and go to Edit > Global Configuration > Presets. In the Timing section, select the option “Allow order to be activated, or filled outside of regular trading hours (if available)”. Then click Apply and OK to save the changes. If the client only wants the order to be eligible during the pre-open session, and not during the after-hours session, they can select the option “Allow order to be routed and executed during pre-open session”, where available. Please note that outside regular trading hours availability depends on the product, exchange, order type and market session. Trading outside regular hours may involve lower liquidity, wider spreads and higher price volatility.
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