Apple is the largest company by market cap in the S&P 500, as well as the world, as of April 2021, with a value of about $2.2 trillion. It is a technology company that designs, manufactures, and sells various consumer electronics, software, and online services.
Microsoft is the second-largest company by market cap in the S&P 500, as of April 2021, with a value of about $1.9 trillion. It is a technology company that develops, produces, and sells various software, hardware, devices, and cloud services.
Amazon is the third-largest company by market cap in the S&P 500, as of April 2021, with a value of about $1.7 trillion. It is an e-commerce and technology company that offers various online retail, streaming, cloud, and artificial intelligence services.
Google, a subsidiary of Alphabet, is the fourth-largest company by market cap in the S&P 500, as of April 2021, with a value of about $1.5 trillion. It is a technology company that provides various online products and services, such as search, advertising, cloud, maps, YouTube, and Gmail.
Google LLC (Alphabet Inc.)
Facebook is the fifth-largest company by market cap in the S&P 500, as of April 2021, with a value of about $840 billion. It is a social media and technology company that operates various platforms and apps, such as Facebook, Instagram, WhatsApp, and Messenger.