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 ABC Agreement Source ABC AgreementDefinition: A contract between an employee and a brokerage firm outlining the rights of the firm purchasing an NYSE membership for that employee.