Trading Rules
Trading hours of US stocks
How to place an order for US stocks
How to modify or cancel an order
What are time in force and pre-market & after-hours trading
Whether use the pre and post-market price to calculate the market value and profit or loss of your position
Why should the placement of market orders be restricted
What is penny stock
Can US stocks trade intraday/Can I sell US stocks the same day I bought them
Why was my sell order with an order price lower than the best ask price not filled
US stock market holidays
Why use pre- and post-market prices to calculate market capitalization and profit & loss of stocks during the respective session
Withholding Tax on Publicly Traded Partnerships (PTP) Securities and Trading Arrangements
Fractional shares trading in the US stock market
Order Type
US Stock Option
US Index Option
Extended trading hours are also trading hours of the exchanges, and pre- and post-market prices generally respond in advance to financial reports and market fluctuations. For risk control reasons and with reference to the practice in the industry, the latest pre and post-market prices are used to calculate the market capitalization and profit & loss of a stock. When another day begins (that is, after 00:00 a.m. ET), the closing price will be used to calculate the market capitalization and profit & loss of the stock.
Moomoo is a professional trading app offered by Moomoo Technologies Inc. In the U.S., investment products and services on moomoo are offered by Moomoo Financial Inc., Member FINRA/SIPC.
Any illustrations, scenarios, or specific securities referenced herein are strictly for illustrative purposes. Past investment performance does not guarantee future results. Investing involves risk and the potential to lose principal.