而且这通常涉及凭保证金额度买进——也就是说，从经纪人那里借钱。

And it usually involved buying on margin – that is, borrowing money from the brokerage.

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只要账户尚有未平仓合约，则客户之账户内在任何时候均须保持维持保证金额。

For as long as the Client's account shows an open position, the Client shall maintain the Maintenance Margin in the Client's account at all times.

youdao

再次，凭保证金额度购买的股票债券或一些“衍生物”又被叠置于已膨胀数倍的货币供给之上。

Third, buying stocks and "derivatives" on margin allows a further pyramiding of financial assets on top the already multiplied money supply.

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