1. NIFTY has given 153% returns in last 15 yrs
2. On a week day basis, Monday sees th major fall of 15% and Wednesday sees a major rise of 79%.
3. For SIP 21, 22, 23 and 24th date are the best days to invest as market is down cumulatively by -46% in the last 15 yrs on these days, and 24th of the month sees the worst fall of 22% among all 31 days of the month making it the best day to invest through SIP to get the lowest NAV possible for highest returns.
All About Indices - chart - 9550041