Facebook used the stock-market ticker symbol FB before becoming Meta Platforms.
Facebook began public trading on Nasdaq in May 2012 under the ticker FB. The symbol matched the company’s widely known name and remained in use for nearly a decade as Facebook expanded beyond its original social-networking service.
After Facebook announced its corporate rebrand to Meta Platforms in October 2021, the company adopted the ticker META. The stock-symbol change took effect on June 9, 2022. The company’s social network continued to be called Facebook; the change applied to the parent corporation.
A common mix-up is treating FB as the ticker for the current parent company. FB referred to the former corporate identity, while META is the symbol used by Meta Platforms.