Issued shares are the total number of shares a company has ever distributed to shareholders since its inception. This number includes all shares currently held by investors as well as any shares the company has bought back and is holding in its own treasury. Issued shares can never exceed the number of authorized shares, which is the maximum set in the company's corporate charter.
You find the issued share count in the stockholders' equity section of a company's balance sheet.
Three distinct labels describe where shares stand in a company's equity structure.
Think of it like a box of chocolates: authorized is how many fit in the box, issued is how many were ever made and placed inside, and outstanding is how many are still there after someone ate a few.
When a company buys back its own shares, those shares do not disappear from the issued count. They become treasury stock, which reduces outstanding shares but leaves issued shares unchanged. Treasury stock carries no voting rights and receives no dividends.
Apple is the most prominent example. The company has repurchased hundreds of billions of dollars of its own stock over the years. Its issued shares remain high, but outstanding shares are meaningfully lower because of the treasury position.
You need to know the distinction between issued and outstanding shares to use financial metrics correctly. Earnings per share is calculated with outstanding shares, not issued shares. Using the wrong denominator will give you a number that understates actual earnings per share if the company holds significant treasury stock.
Authorized shares relative to issued shares also tells you something about a company's flexibility. If a company has authorized 10 billion shares but has only issued 3 billion, it has significant room to raise capital in the future through new share issuances without needing shareholder approval to increase the cap.