L We can backtest ideas before trading them.

l 我们可以先测试思想，然后再交易。

youdao

Del Ama declined to talk about the specifics of the backtest, citing SEC restrictions.

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In such a backtest, a manager knows exactly when stocks and bonds did badly and when they did well and can design a portfolio that would have been 100% in cash during bad markets and 100% in other assets when they shone.

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