Stock (disambiguation)
The term stock may refer to:

 Stock, paper shares of a company
 Stock, specific items held in a business' inventory
 Private stock
 Stock, a part of a gun mentioned in the saying "lock, stock, and barrel" 
 Stocks, a punishment device
 Breeding stock, specific animals used for breeding
 Laughing stock, a idiom
 Rumall stock
 Stockboy

Real world

 Stock footage, re-used footage from previous episodes/movies and other sources