US Trading Rules
US Stock Market Trading Hours
| US Eastern Standard Time (EST) | 09:30 AM – 16:00 PM | |
| Singapore Standard Time | 10:30 PM – 05:00 AM | Standard Time |
| 09:30 PM – 04:00 AM | Daylight Savings Time | |
Daylight Savings Time begins from the second Sunday in March and ends on the first Sunday of November each year. Standard Time begins from the first Sunday in November and ends on the second Sunday of March each year.
US Stock Trading and Settlement Mechanism
Day Trading
Day trading means buying and selling a batch of securities within a day. Day trading is often referred to as T+0 trading. Longbridge accounts can engage in unlimited day trading.
Clearing Rules
US stocks are subject to a T+1 closing system under which the clearing and closing process is not completed until the next business day after the transaction.
Minimum Board Lot Size and Price Limits for US Stocks
The minimum board lot size for US stocks is 1 share (fractional trading is currently not supported), and there is no single-day price limit.
Minimum Stock Tick Size
Minimum stock tick size: USD 0.0001 for stocks trading under USD 1 and USD 0.01 for stocks trading above USD 1.
Are Pre-Market and After-Hours Trading Supported?
Longbridge supports the Pre-Market and After-hours trading of the US stocks outside of the standard trading hours. The Long Bridge trading hours for all US stock markets are stipulated as follows:
| Pre-market trading hours for US stocks | 4:00 a.m. - 9:30 a.m. (ET) | |
| Singapore (Daylight Savings Time): 4:00 p.m. - 9:30 p.m. | Singapore (Standard Time): 5:00 p.m. - 10:30 p.m. | |
| After-hours trading hours | 4:00 p.m. - 8:00 p.m. (ET) | |
| Singapore (Daylight Savings Time): 4:00 a.m. - 8:00 a.m. | Singapore (Standard Time): 5:00 a.m. - 9:00 a.m. | |
| After-hours trading hours for US stocks on half-day trading days | 1:00 p.m. - 5:00 p.m. (ET) | |
| Singapore (Daylight Savings Time): 1:00 a.m. - 5:00 a.m. | Singapore (Standard Time): 2:00 a.m. - 6:00 a.m. | |