Stock trading is a form of financial trading that involves the buying and selling of stock or shares in publicly traded companies. It is a popular way to make money in the capital markets, as investors can take advantage of price movements in the stock market to generate profits.

Stock trading can be done through a broker or financial institution, or through an online trading platform. When trading stocks, investors can buy or sell either individual stocks or bundles of stocks called ETFs (exchange-traded funds). Each stock has a unique ticker symbol that identifies it, and investors can use this information to identify the stock they want to trade. 

When trading stocks, investors must be aware of the risk associated with investing in the stock market. The prices of stocks can go up or down depending on economic conditions and the performance of the company. Therefore, it is important for investors to research the stock they are considering before investing.

One of the most important aspects of stock trading is understanding the different order types that are available. The most common order types are market orders, limit orders, and stop-loss orders. Market orders are used to buy or sell a stock at the current market price. Limit orders allow investors to set a maximum or minimum price they are willing to pay or receive for a stock. Stop-loss orders are used to limit losses from a stock position by creating a predetermined level of loss at which a stock will be sold automatically.