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Finance Dictionary and Glossary of Investment Terms
A call from a broker to a customer (called a maintenance margin call) or from a clearinghouse to a clearing member (called a variation margin call) demanding the deposit of cash or marginable securities to satisfy the Regulation T requirements and the house maintenance requirement for the purchase or short sale of securities or to cover an adverse price movement. also called federal margin call or Reg. T Call (for NASD requirements) or margin call.
Notification from a broker that a customer's equity in a margin account is below the required maintenance level. The customer must provide more cash or securities to meet a house call.
Notification by a brokerage house that a customer's margin account is below the minimum maintenance level. The client must provide more cash or equity, or the account will be liquidated.