在投资领域，尤其是股票投资中，经常会听到“股票 B 值”这个术语。股票 B 值，也被称为贝塔系数（Beta Coefficient），是一个用于衡量单个股票或投资组合相对于整个市场的波动性的重要指标。 简单来说，贝塔系数反映了股票价格相对于市场整体波动的敏感度。

This produces a beta coefficient, or beta, which indicates how a stock will move in relation to the market. That's what you were looking at in the example of the "high-beta" fund above ...