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Sunday, November 2, 2025
Knowledge BaseGlossary

Glossary

Algorithmic Trading can be a complex subject. Keep your knowledge current with this glossary of key concepts, terminology, and technical indicators.

Special Memorandum Account - SMA

DEFINITION

A special account where excess margin generated from a client's margin account is deposited. Also known as "special miscellaneous account".

EXPLANATION 

The purpose of an SMA is to lock in any gains realized in a client's margin account. Consider the situation where stock within a client's margin account realizes a capital gain and creates excess margin. If this excess amount is held in the account and the stock position produces a capital loss at a later date, the client would lose his or her gain entirely.
An SMA can also hold interest and dividend payments from long positions and proceeds from closing out a securities position. Clients can use funds in their SMA to purchase additional securities for their margin account.

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TRADING FUTURES AND OPTIONS INVOLVES SUBSTANTIAL RISK OF LOSS AND IS NOT SUITABLE FOR ALL INVESTORS
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