Very horrible day....Such Volatility I am seeing for the first time.
In 1990s, sensex/nifty used to move 5-10% on most of the days. During harshad mehta bull run in March-April 1992, the monster took nifty from 500 to 1300 in just about 2 months ! Thats like 160% jump in 2 months.
In today prices, it is equivalent to saying nifty moving from 5000 to 13,000 in 2 months !
Interestingly, what i found out that volatility is decreasing as bid-ask spread becomes more efficient. In future, volatility will be less except news based psychological volatility.
I have worked with dow jones price action from 1896 when the index started out. Initially it also used to move 2-4% on most of the days and then over the number of years volatility decreased.