In that case, alpha is a measure of how much Shiller,Inc. outperforms.

这样的话,alpha就用以衡量,希勒公司.表现超过市场平均水平多少

耶鲁公开课 - 金融市场课程节选

We'll come back to this, but beta of the stock is a measure of how much it moves with the market and the alpha of a stock is how much it outperforms the market.

回到原先的话题,beta用以衡量,本公司跟随市场变化的程度,alpha衡量超过市场的表现

耶鲁公开课 - 金融市场课程节选