中文翻译
IV（隐含波动率）是衡量隐含波动程度的指标。你可以通过图表大致进行目测检验。$EWY 每天的波动幅度，甚至超过那些高波动率公司（例如 $MRVL，波动率55%）一周内的波动。有时波动率会被错误定价，如果你能发现这一点，当市场正确重新定价波动率时，你的看涨期权（Calls）上涨速度会快于正常水平。
· 方法论
通过图表目测隐含波动率，利用定价错误加速看涨期权收益。
英文原文
IV is a measurement of implied volatility. You can kinda eyeball test it based on the chart. $EWY moves more in every day than companies with volatility (eg. $MRVL 55%) does a within a week. Sometimes volatility is priced wrong and if you spot that, your calls go up faster than normal when market markets price in volatility correctly.