volatility

市场波动

Refers to the degree of variation of a trading price series over time, as measured by the standard deviation of logarithmic returns.

指交易价格序列随时间变化的程度，通过对数回报率的标准差来衡量。

价格波动

Describes when prices of a commodity or security fluctuate rapidly over short time periods.

描述商品或证券的价格在短时间内快速波动的情况。