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# 卓尔金升级A3——止损熔断

{% hint style="info" %}
回测结果表明，止损这种事后诸葛亮策略是没有效果的，所以索性不止损。
{% endhint %}

```c
y_1 = MIN(MAX(
          y_0*(1+MIN(x/(a*T),0))
          +MAX(x/(a*T),0)
      ,0),1)

y:改变系数
x:价格改变
a:目标收益
T:时间窗口
```