Saudi Aramco's record-shattering IPO made 3 billion shares available to public investors, though the offering only represents 1.5% of the oil giant's total value.
Most large-cap companies offer far more of their stock in IPOs. Apple, Amazon, and Google-parent Alphabet all have more than 84% of their shares listed publicly.
With the majority of Aramco's shares held by Saudi Arabia, government officials retain control of the firm and can lead it to take actions beneficial for the country.
Read this story at Business Insider