套利交易蒸蒸日上
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伦敦——
国际清算银行近期报告指出，国际外汇市场每日的交易额高达4万亿美元，2007年此数据是3.3万亿。虽然外汇贸易规模之巨引人瞩目，屡上头条，但是外汇的交易方式也同样重要——近年来，交易方式蓬勃发展。
任何入门金融教材都会说，投资者注重的是他们整个投资组合的盈利，而非其中某一项资产的盈亏。投资者珍视与整个市场走势不相关的资产，而与市场负相关的资产则更受青睐。拥有这样的资产会使总盈利更加稳定。
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