ITW· Illinois Tool Works
Open interest · contracts by strike
Spot
270.5
Max Pain
260
Call OI
2,136
Put OI
244
P/C ratio
0.11
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 260
Spot 270.5
310
300
290
66
280
1,185
Call OI
270
181
260
698
Max pain
250
56
240
90
Put OI
230
Open interest by strike with the max-pain level marked, per expiry — heuristics over CBOE delayed chains, same strike band as the GEX profile.