Stock index futures: After the order was placed at the opening time of the day, the software was shut down because of something, so is the order still valid? Can the transaction be completed automatically? It is valid on the same day. If the price does not reach your entrusted price, the entrusted order will be cancelled automatically after the close of the day. If the price jumps to your entrusted price, it will automatically close the position. This is the same as the entrusted order of stocks. Another case is the use of stop-loss and profit-taking functions in the expansion function.