What is the time-in-force and trading sessions

1. Time-in-Force

When placing an order, investors can choose its validity period, i.e. time-in-force. Choices include Day and Good-Till-Cancelled (GTC).

1.1 Day

A day order is active until the end of the relevant trading session on the day it is placed, and unfilled day orders will be cancelled after it expires.

1.1.1 Short selling is only available for day orders.

1.2 GTC（Good-Till-Cancelled）

A GTC order is active until it is fully filled or cancelled. Investors can place a pending order at an ideal price in advance.

Note: A GTC order can remain active for up to 90 natural days, and will be automatically cancelled after they expire.

1.3 GTD（Good-Till-Date）

A GTD order will remain active until the market close of a specified date, unless it fails or is fully filled or cancelled. If the specified date is a non-trading day and the order remains unfilled, it will be cancelled automatically after the market closes on the last trading day prior to the specified date.

2. Trading Session

Investors have access to extended-hours trading, which means they can trade in the pre-market and post-market trading hours. Investors can choose whether to allow fill outside regular trading hours (RTH) when placing orders.

2.1 Fill outside RTH allowed (RTH + Pre/Post-Mkt)

Orders will be matched during the pre-market and post-market trading hours as well as the RTH. Unfilled orders during the pre-market trading hours will be automatically transferred to the RTH, and unfilled orders during the RTH will be automatically transferred to the post-market trading hours.

2.2 Fill outside RTH not allowed (Regular Trading Hours)

Orders will only be matched during the RTH.

2.3. Overnight trading

Orders can be placed and matched in Overnight Trading Session, and unfulfilled orders will be cancelled automatically at the end of Overnight Trading Session. Read more

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