Intra-day trading means that futures can buy and sell the subject matter many times in a trading day, without restriction. Futures, options and foreign exchange can be traded in the day, while stocks and funds can be traded in the day, but not in the day.

investors can do intraday trading in disguise: 1. investors buy shares on the basis of holding them and then sell them; 2. Do T through the margin financing and securities lending account, for example, sell stocks through margin financing first, and then buy stocks; 3. Institutional investors make T through the shipment of ETF funds.