Hi,
Going back to fundamental reason of this thread,
Raj developed the system to give us an edge in executing short straddle strategy. Looking at the MAX OI position we need to sell OTM CALL - PUT pair. That was the primary strategy.
My observations over last 2 - 3 months:
1. Option chain analysis is not appropriate for positional / day futures trading (Raj developed a separate tool for that called MTP).
2. The COI action 15 - 20 mins after market opens gives a good idea about direction ( bullish / bearish ). E.g there were no put writers yesterday in the 1st half so it was a very bearish day. Today there are no call writers so ...... you get the idea
3. The average of call - put COI gives a pretty good idea about the range and target for the day.
4. Like all technical indicators option chain analysis may give wrong signal / frequently changing signal in an extremely volatile market (like we have seen in last 4- 5 sessions)
Mohan is correct in saying option chain will not always give a reversal signal before it happens. It however gives a clear vision of market direction which is all a trader need to stay with the market direction