Tiger Brokers is helping our clients have direct market access to the US market, so yes, we do offer US pre and post market execution. When you placing your order to US market, you will see an option to allow the filling of the order outside RTH (Regular Trading Hours). Filling outside RTH means to allow the order execute in the US pre and post market. Please note the pre and post market hours below:
Pre-market: New York Time 8am to 9.30am.
Post-market: New York Time 4pm to 8:00pm.
Please note you can also checking the pre and post market price of the stock on the stock page, that means you can keep track of the stock price and if there are any important company announcement releases which normally happen during the pre and post market hours.