Super Finance Glossary Over 10,000 financial glossary terms... Browse by Letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Or Enter Search Term: By Author: All Sources Campbell Harvey Internal Revenue Service Finance Globe FDIC Snow Gold CFTC U.S. Census Bureau Search Tips Take A Position Source Take A PositionDefinition: To buy or sell short; that is to own or to owe some amount on an asset or derivative security.