Apple's stock ticker is AAPL, the four-letter symbol used to identify its publicly traded shares.
Apple trades on the Nasdaq stock exchange under the ticker AAPL. The company began as Apple Computer Company in 1976 and became a major personal-computer maker before expanding into music players, smartphones, tablets, wearables, and services.
Ticker symbols are short identifiers assigned to listed securities. They are not the same as a company's legal name, brand name, or stock-exchange name. Apple changed its corporate name from Apple Computer, Inc. to Apple Inc. in 2007, reflecting its broader business beyond computers.
A common error is selecting MSFT, which belongs to Microsoft, or AMZN, which belongs to Amazon. Apple's market capitalization changes with its share price and share count, but AAPL remains its ticker regardless of whether it ranks first, second, or elsewhere among global companies.