littlemay723 发表于 2016-1-21 06:10
I have no way of understanding what you were explaining, but finally i found out 滚动夏普 = sharpe ...
foundamentally, you can calculate your net value (净值)based on a much longer period, eg 20 years, another way is to lock a moving window(eg. 6 month, 3year), it is by means equivallent to what rolling IC wants to express.
《What works on Wall Street》 use a 5 year window to calculate the accumulate return not Sharpe ratio, you can refer to that.