Intraday trading is also commonly referred to as T+0 trading. The English name day trade is a trading model in which a customer buys and sells a position of a stock or stock option within the same trading day.
The US Securities and Exchange Commission stipulates that when the account's net assets are less than $25,000, the account is only allowed to conduct three intraday transactions for five consecutive trading days; when the account's net assets are greater than $25,000, the account can make unlimited intraday transactions.