沒必要啊。兩者的beta本來就不一樣，sndk漲得快跌得也快。

Micron Technology (NASDAQ: MU) has a 5-year monthly beta of 1.92, making its stock significantly more volatile than the broader market.

SanDisk Corp. (SNDK) has an elevated 60-month beta factor typically ranging from 2.78 to 4.82, depending on the exact financial data provider.