FAANG is an acronym referring to the five biggest and best-performing technology companies in the United States of America. These five companies are Facebook, Amazon, Apple, Netflix, and Alphabet, which is the company formerly known as Google. These five companies are among the biggest in the world, not only in the technology industry but in any industry. These 5 companies had a combined market cap of over 4.1 trillion dollars in January 2020. This number has since grown by trillions of dollars.