Trading Rules
Trading session
What is the time-in-force and pre-market and post-market
US Stock MV and P/L Calculation
Why should the placement of market orders be restricted
Other limits for placing U.S. stocks orders
How to modify/cancel an order
How to place an order
Withholding Tax on Publicly Traded Partnerships (PTP) Securities and Trading Arrangements
Risk relating to Trading in US Exchange-listed or Over-the-counter ("OTC") Securities or Derivatives
Fractional shares trading in the US stock market
Order Types
US Stock Option
US Index Option
RSP for Stock
Stock Yield Enhancement Program (SYEP)
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. System will calculate your Yesterday‘s P/L from 8:00 PM to 12:00 AM ET.