The moving averages also work well as filters, telling fast-fingered market players when risk is too high for intraday entries.

这些移动平均线还能当过滤器使用，告诉聪明的交易员什么时候日内交易风险太大。

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Taking profits and moving to cash when risk is high would be a much better strategy, even though the cash would earn nothing, since one keeps the previous profits and can re-enter when the correction ends, rather than having huge losses and needing the next bull market just to get back to even.

FORBES: Don't Fall For False Security Of 'Defensive' Stocks