Trading Rules
U.S. stock market trading sessions
Pre-market and after-hours trading quote update period
Do U.S. stocks support day trade
Is there a limit on price fluctuations for US stocks
Minimum trading unit for U.S. stocks
What is off market orders
Why the sell order price of U.S. stocks is lower than the best ask price, but can not be traded
What is the settlement rule for U.S. stocks
Extended trading risks
Other Notes on Placing US Stock Orders
What is penny stock
US Stock MV and P/L Calculation
Why use pre and post-market prices to calculate the market capitalization and profits and losses of stocks during respective period
Why my stock is banned from trading during pre-market trading session
Arrangement for delay or failure of trading system
Why should the placement of market orders be restricted
Withholding Tax on Publicly Traded Partnerships (PTP) Securities and Trading Arrangements
U.S. market overnight trading
Risk and Important Information relating to Trading in Over-the-counter ("OTC") Securities or Derivatives
US Stock Moving to T+1 Settlement
Order Type
US Stock Option
US Index Option
ETF
Stock Yield Program
Fractional shares trading in the US stock market
Dividend Reinvestment Plan
You can choose to use the pre-market, post-market, and overnight prices to calculate the market value and P/L of your position for the pre-market, post-market, and overnight trading hours, respectively. If you choose not to use them, the closing price for the regular trading hours will be used by default. (Special Note: If you do not use the overnight price, but select the post-market price, then during the overnight trading hours, the closing price for the post-market hours will apply before 12:00 AM ET, and the closing price for the regular trading hours will be used after 12:00 AM ET.)
In addition, if you choose to use the overnight price, your Today's P/L will be reset at 8:00 PM ET every day. You can also check your Yesterday‘s P/L. Futu calculates your Yesterday‘s P/L from 8:00 PM to 12:00 AM ET.