Glossary · Trading and execution
Restriction
A restriction is a client-directed limit on what may be held or traded in their portfolio — a security, a sector, or a category the client will not own.
Restrictions are easy to record and hard to honor, because they must survive model changes, rebalances, corporate actions and staff turnover.
A restriction that lives in a note field rather than in the trading logic will eventually be violated, and the violation will be discovered by the client.
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