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?一项固定波幅交易
有关合约是一项固定波幅交易(collar transaction)。
In this strategy, called a zero-cost collar, your costs are limited to your transaction costs alone, since your proceeds from selling the calls will zero out the cost of the puts.
WSJ: Stocks Are Riskier Than You Think
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。