Common stock shares with a built-in escape clause that allows the investor to sell them back to the issuing company at a pre-set price. This option provides additional security to the stockholder, should the value of the shares decrease dramatically.
Related information about puttable common stock:
- Putable Common Stock Definition | Investopedia
 Common stock that gives investors the option to put the stock back to the   company at a predetermined price. Also known as a "putable swap".
 
- Puttable Common Stock - Financial Dictionary - The Free Dictionary
 Common stock in a publicly-traded company that an investor may sell back to the   issuing company at a certain price. This price is determined when the stock is ...
 
- The Advantages of Puttable Common Stock - Financial Web
 Puttable common stock is a type of security that provides you with some unique   advantages. You can actually sell puttable common stock back to the company at ...
 
- What is puttable common stock? definition and meaning
 Definition of puttable common stock: Common stock shares with a built-in escape   clause that allows the investor to sell them back to the issuing company at a ...
 
- Puttable Common Stock: Definition from Answers.com
 Puttable Common Stock Common stock that gives investors the option to put the   stock back to the company at a predetermined price.
 
- NOTE I - PUTTABLE COMMON STOCK for ENCORE - Wikinvest
 NOTE N – PUTTABLE COMMON STOCK. The acquisition agreement and related   put agreement, pursuant to which we issued cash and 773,616 shares of ...
 
- puttable common stock - Business Definition
 puttable common stock definition: The shares of common stock that are sold with   rights to put the shares back to the issuer at a specified price. Compare callable ...
 
- Puttable Stock: A New Innovation in Equity Financing - JStor
 One of the problem-solving financial innovations that investment bankers have   come up with recently is a puttable common stock. It has the potential to reduce ...