Basically you are asking how to Trade
I am assuming you want to Trade just by looking at the Options Chain data. Which is possible. So let us go step by step.
1. Let us assume you are a Day Trader.
2. You need an Entry and Targets to Exit.
3. By Looking at the MAX COI @ PE - You can find out the Support
4. By Looking at the MAX COI @ CE - You can find out the Resistance
5. By Taking the Average of MAX COI @ CE and PE, you get the Pivot.
6. If the Stock is Trading near the MAXCOIPE, you might want to Buy. Your Targets would Pivot and MAXOICE
7. If the Stock is Trading near the MAXCOICE, you might want to SELL. Your Targets would Pivot and MAXOIPE
8. What if you do not get entry near MAX OI @ CE or PE - Do not Trade.
9. By comparing the MAX OI @ CE and PE you will also get a sense of whether you BUYing or SELLing is Safe. In other words, your bias on whether you need to be Bullish or Bearish.
10. You can also look at the individual strikes to find out whether the market is Trending or Range bound.
Let us take today's example for NIFTY
3. By Looking at the MAX COI @ PE -
7900
4. By Looking at the MAX COI @ CE -
8000
5. By Taking the Average of MAX COI @ CE and PE,
7950.
6. If the Stock is Trading near the MAXCOIPE, you might want to Buy. Your Targets would Pivot and MAXOICE.
NIFTY made low of 7906, which is near the support of 7900, So It is opportunity to Buy
9. By comparing the MAX OI @ CE and PE you will also get a sense of whether you BUYing or SELLing is Safe. In other words, your bias on whether you need to be Bullish or Bearish. -
-12L @ CE is Less than 7L @ PE - So it is a BUY At 7900 - Bullish
10. You can also look at the individual strikes to find out whether the market is Trending or Range bound.
Till 7900 it is Bullish and from 7950 it is Bearish, which tells that the Range is only 50-75 points and it is going to be a Rangebound market
So as per above, if one has bought at 7910, should have closed all the positions at 7950.
Note : In the above to calculate I have taken only MAX COI to calculate the pivot. One can also include MAX OI levels to get more accurate levels. Please remember the above strategy or logic is as per my observation. So it might not work when it is overly Bullish or Bearish.