Meta Platforms was called Facebook before its corporate name change in October 2021.
Facebook, Inc. announced the new corporate name Meta Platforms, Inc. on October 28, 2021. The change separated the parent company's identity from Facebook, the social-networking service, and emphasized its interest in building the metaverse.
The company continued to own Facebook along with Instagram, WhatsApp, and other products. Facebook remains the name of the social network, while Meta is the name of the publicly traded parent company.
A corporate name change does not automatically create a new company or erase its stock-market history. Meta retained the NASDAQ ticker META after changing from the ticker FB. Its market capitalization reflects the parent company's businesses as a whole.