These margin accounts are operated by the investor's broker and are settled daily in cash .

这些保证金帐户是由投资人的代理来运作的并且是由现金来支付的。

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The Fed flooded the system with cash by purchasing Treasury bonds and other securities from banks, crediting their margin accounts with cash.

FORBES: Excess Reserves Are The $1 Trillion Reminder Of Crisis

Instead of holding pledged stock in trust accounts for its customers, says the complaint, Credit Bancorp put the shares in cash or margin accounts, sold or borrowed against the stock and kept the proceeds, sometimes buying more securities with the money.

FORBES: Follow-Through

When equity prices decline steadily as they have been these last few days, margin accounts get restricted and in the worst case, if cash or stock is not deposited to meet margin requirements, sales can be forced by the brokers to pay for margin debt used to buy the stock.

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