Allen Baker purchased ten $500 convertible bonds at face value. Each bond was convertible into 20 shares of common stock. After several years, when the stock was selling at 40, Allen converted all ten bonds. What was Allen's gain upon conversion of the bonds?

Convertible Bonds

Convertible Bonds are a type of corporate bond that holders can convert into a predetermined number of shares of the issuing company's common stock.

Common Stock

A type of equity security that represents ownership in a corporation, with voting rights and potential dividends.

Face Value

The nominal or dollar value printed on a bond, bill, or other financial instrument, indicating its worth at maturity.