A stock symbol, also known as a Ticker Symbol, is a short combination of letters that are used to uniquely identify publicly traded companies on a stock exchange. The symbol is typically composed of one to four letters and is used to identify the company and its stock on financial websites, stock market tickers, and other financial reports. The stock symbol is assigned by the stock exchange on which the company is listed and is used as a shorthand way to refer to the company's stock.A stock ticker symbol is a unique identifier assigned to a publicly traded company that is listed on a stock exchange. It is used to identify and track the company's stock and can be used to obtain information such as current stock prices, trading volume, and historical stock performance. Ticker symbols are often used in financial news articles, stock market data providers, and other financial platforms to refer to a specific company's stock. The symbols typically consist of a combination of letters and are usually short and easy to remember.For example, the ticker symbol for Apple Inc. is AAPL and for Amazon is AMZN.When a company wants to go public and issue shares of stock, it will have to apply to be listed on a stock exchange. Each exchange, such as the NYSE or NASDAQ, has its own rules and requirements for listing, and one of them is to assign a unique ticker symbol for the company. Once the ticker symbol is assigned, it is used to identify the company's stock and its movement on the stock exchange. The ticker symbol is also used in financial news articles and other financial platforms to refer to the company's stock.