它们的数学模型依赖于过去的交易规律，在其它证券价格变化(例如下跌)时，预测某种证券未来的表现。
Their mathematical models rely on past trading patterns to predict how particular securities will perform in the future if other securities, say, fall in price.
当一个普通人听说“资产支持证券”这样的专业名词时，他很可能把它当作某种建立在次级债虚弱基础上的疯狂的结构产品。
When the average person hears the term "asset-backed securities" he may well think of some of the crazier structures built on the rickety base of subprime mortgages.
ETFs是跟踪某种特殊指数进展的上市证券。它的费用通常不到百分之一。
ETFs are quoted securities that track a particular index, for a fee that is normally just a fraction of a percentage point.
应用推荐