What is High?

The high, or highest price, is one of four main data points used for day trading on the stock market. The other three are the opening price, low, and close — and all four are collectively known as OHLC. The high is generally classified as the highest price obtained during the last trading period, which typically runs from 9:30am–4:30pm EST on weekdays in U.S. markets. Unlike the traditional stock market that has closed hours and closes completely for trading on weekends, cryptocurrency markets are open 24 hours a day, every day of the year.