OI changes & max-OI levels
Where positions are being built, strike by strike
Every change in open interest at every strike of an expiry, so the build-up can be read at any moment: total call and put OI, the put-call ratio, and which strike holds the most OI - the levels traders watch as support and resistance.
Updatesevery OI change, intraday
Levelshighest call & put OI strikes
Historyas the option chain
Data points
7 fieldsFieldWhat it meansTypeStrike & typeWhich strike, and whether call or put.numberOIOpen interest after each change.numberTotal call / put OIAll strikes added up, at any moment.numberPCRPut-call ratio: total put OI ÷ total call OI.ratioHighest call / put OI strikeThe strike with the most open interest on each side, and how it shifts through the day.numberOI profileEvery strike's call and put OI as it stood at any second of the day.numberMax painThe strike where option buyers would be paid least at expiry, at any moment of the day.number
What you can do with it
tap a request to copy it, then paste it into the chatUse PCR or OI build-up as a signal at any time of day.
Follow the highest-OI strikes as they move, and act when price reaches them.
Use max pain as a level or a filter.