Pre-Market Trading refers to the buying and selling of securities on a stock exchange before the regular trading session begins. Pre-market trading typically takes place between the hours of 8:00 a.m. and 9:30 a.m. Eastern Standard Time (EST) on weekdays, and is also referred to as the "pre-market session."Pre-market trading is typically less liquid and more volatile than the regular trading session, as there are fewer participants in the market and the volume of trades is typically lower. It is also more risky, as there is less transparency and information available about the companies whose shares are being traded.Pre-market trading is typically only available to a select group of market participants, such as institutional investors and market makers. Individual investors can participate in pre-market trading through brokers that offer pre-market trading services.Pre-market trading can provide an opportunity for investors to react to news and events that occur outside of the regular trading hours, but it is important for investors to carefully consider the risks and potential rewards before participating in pre-market trading.