Useful, first of all, learning mathematics is sensitive to numbers, second, learning mathematics can deeply understand the mathematical principles of various technical indicators, and finally many professional investors establish some mathematical models to select stocks.

The stock is traded at T+ 1, which is bought on the same day and can only be sold on the next trading day. Trading hours are from Monday to Friday at 9: 30am-11:30am, and in the afternoon13: 00pm-15: 00pm, which is an illegal holiday.