US Stock Market Trading Hours
| Time Zone | Regular Trading Hours | Pre-Market Trading | After-Hours Trading |
| Eastern Time | 9:30-16:00 | 4:00-9:30 | 16:00-20:00 |
| Beijing Time(US Eastern Daylight Time) | 21:30-4:00 following trading day | 16:00-21:30 | Following trading day 4:00-8:00 |
| Beijing Time(US Eastern Winter Time) | 22:30-5:00 following trading day | 17:00-22:30 | Following trading day 5:00-9:00 |
Non-Regular Trading Hours Orders
After the end of the trading period on Day T, customers can submit order orders for Day T+1. The order will be temporarily stored in the broker's trading system and officially submitted to the exchange while the market opens.
Non-Regular Trading Hours Orders Submitting Time：
| Order Type | Extended Hours | Submittable time period |
| Limit | Y | T 20:00(ET)-T+1 04:00(ET) |
Minimum trading unit
The minimum trading unit is 1 stock (we are working on bringing you fractional shares!)
Do U.S. Stocks have price limitations?
There are no restrictions on up and down price fluctuations of U.S. stocks in a single trading day.
Circuit Breaker
Circuit breakers are emergency-use regulatory measure that temporarily halts trading on an exchange. Circuit breakers temporarily halt trading when prices hit predefined levels on U.S. stock exchanges.
Market-Wide circuit breakers
In effect since February 2013, market wide circuit breakers respond to single-day declines in the S&P 500 Index. If the index falls to 7% below its previous close, this is known as Level 1; Level 2 is a 13% drop; Level 3 a 20% drop. Level 1 or 2 will halt trading on all exchanges for 15 minutes, unless it occurs at or after 3:25 pm, in which case trading is allowed to continue. Level 3, whenever it occurs, will halt trading for the remainder of the trading day (9:30 am to 4:00 pm). Before these rules were in place, the DJIA was the benchmark, and the thresholds were 10% (Level 1), 20% (Level 2) and 30% (Level 3).
Single-Stock Circuit Breakers
A single stock is required to undergo a trading pause if the stock price moves up or down outside the price band (5%, 10% or 20%) within a five-minute period. If trading outside of bands persists for 15 seconds, trading is halted for five minutes. The reference price is calculated using the average price over the previous 5 minutes. The maximum allowed pause is 10 minutes, and the bands are doubled during the opening (9:30-9:45 am) and closing (3:35-4:00 pm) periods of the trading day.
Trading Rules
U.S. stocks are T+0 transactions, so stocks bought on the same day can be sold on the same day.
Settlement Rules
U.S. stocks settle in one business days (T+1). This means for stocks traded today (T), the securities company and the clearinghouse will complete the settlement of funds and stocks on the next trading day (T+1).(The new “T+1” settlement cycle will apply to all applicable securities transactions occurring on or after May 28, 2024.)
US stock markets holiday calendar
Please refer to the holiday schedule published by NYSE：https://www.nyse.com/markets/hours-calendars