Short selling rules were stepped up, and more procedures were put in place to ensure that a short seller would be able to deliver stock on settlement date.

上调卖空规则，设立更多程序以确保卖空者在结算日能交付股票。

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The future date is called the delivery date or final settlement date.

未来的日期也叫交割日或到期日。

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Both parties of a futures contract must fulfill the contract on the settlement date.

在交割日，买卖双方都要履行责任。

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But the seller of the security is supposed to actually borrow the shares before the settlement date of the transaction.

FORBES: Naked Shorts Seeking Cover

Some control procedures appear to have been predictable, being timed to take place shortly before the settlement date of futures contracts.

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Since any gains over the course of a swap agreement are considered unrealized until the next settlement date, timely payment from the counterparty determines profit.

FORBES: Demystifying The Swap Market