It stands for initial margin; an amount of cash (broadly, monetary assets) that is deposited or collateral (eligible securities) that...

An amount of cash that is deposited or collateral (eligible securities) that is posted with a clearing house to ensure...

An amount of cash that is deposited or collateral (eligible securities) that is posted with a clearing house to ensure...

An amount of cash that is deposited or collateral (eligible securities) that is posted with a clearing house to ensure...

The amount of cash or marginable securities (e.g., treasuries, blue chip stocks) that a holder of a futures or options...

A brokerage account that is used for the purpose of lending money to clients seeking to fund investment transactions (trades)...