This function is provided by securities, not by the exchange.
When long-term orders are used, the system will automatically submit valid orders according to the market conditions. You need to ensure that the account has sufficient purchasing power or available positions. If the orders are rejected, the function will be terminated at the same time.
Please be noted that if the orders on that day are partially filled, the system will continue to submit the remaining quantity on the next trading day. Note: in this case, the handling fee will be charged based on actual transactions.
If the company's corporate actions such as split / merger / dividend affect the stock price, the execution of the order will be terminated after the market is closed on the trading day before the ex-day (XD).