拿2个月，母股价格不变，time value就让你白白损失了很多。其实无论母股价格变不变，拿2个月你肯定白白损失掉了很多的本来价格中隐含的time value。
所以我的理解，warrant应该在价格要出现剧烈变动时候买卖。比如他妈妈突破了，跌破支持了，这个时候介入较好。弄个几天又卖掉。
depending on after two month, whether it is still 3 months to expiry?
say if expire in nov 22, today is June 28, then after two month, it is Aug 28, still around 3 months towards the exp date,
in this case, the time value loss is very little,
however, if it goes into 3 months period, the time value loss is increasing much faster.
in this case, the time value loss is very little,
however, if it goes into 3 months period, the time value loss is increasing much faster.
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