The total value of a publicly-traded company's shares is referred to as its market capitalization.
in short, it's one way for investors to figure out how much a company is worth.
Microsoft stock market capitalization is the US $1.8T
Visa stock market capitalization is the US $403.1B
Mastercard stock market capitalization is the US $313.3B
Oracle stock market capitalization is the US $188.7B
Adobe ADBE stock market capitalization is the US $175.2B
Data - 14 June 2022