These are really financial bets on whether some asset will gain or lose value.

VOA: special.2010.04.30

1, 10% it means that if the market portfolio goes up 10% in value 10% then this asset also goes up 10% in value.

当β等于1时，If，β,表明若市场组合增值,该资产也同时增值。

耶鲁公开课 - 金融市场课程节选

1, 10% it means that if the market portfolio goes up 10% in value 10% then this asset also goes up 10% in value.

当β等于1时，If，β,表明若市场组合增值,该资产也同时增值。

耶鲁公开课 - 金融市场课程节选