T is the abbreviation of "T+0". T+0 is an ultra-short operation technique based on the T+1 rule of stock market trading.

Currently, stock operations are executed on T+1, which means that stocks bought on the same day can only be sold on the next day. For this reason, the "T+0" operating technique was born.

T+0 is a securities (or futures) trading system. Any trading system in which securities (or futures) and price clearing and delivery procedures are completed on the day when securities (or futures) are traded is called T+0 trading.

In layman's terms, securities (or futures) bought on the same day can be sold on the same day. T+0 trading has been implemented in China's securities market, because it is too speculative. In order to ensure the stability of the securities market, my country's Shanghai Stock Exchange and Shenzhen Stock Exchange now implement "T+1" for stock and fund transactions. ” transaction method. That is, if you buy something on the same day, you cannot sell it until the next trading day. At the same time, "T+0" is still implemented for funds, that is, the funds withdrawn on the same day can be used immediately. The Shanghai Futures Exchange implements a "T+0" trading method for steel futures trading.

At present, my country's stock market implements a T+1 clearing system, while the futures market implements a T+0.