Authorized Shares..7,500,000,000 a/o Jul 31, 2018 Outstanding Shares 2,909,165,639 a/o Jul 31, 2018 It only goes to show that a large OS won't stop a stock from running, its all about the revenue, thats why a large OS never stopped this one from running https://finance.yahoo.com/quote/MSFT/key-statistics?p=MSFT