FDS· FactSet
Open interest · contracts by strike
Spot
230.1
Max Pain
240
Call OI
925
Put OI
1,148
P/C ratio
1.24
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 240
Spot 230.1
260
130
250
55
240
704
200
Put OI
230
51
76
220
121
453
Call OI
210
76
200
145
Open interest by strike with the max-pain level marked, per expiry — heuristics over CBOE delayed chains, same strike band as the GEX profile.