VIX· CBOE Volatility Index
Open interest · contracts by strike
Spot
16.5
Max Pain
18
Call OI
7,405
Put OI
182,374
P/C ratio
24.63
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 18
Spot 16.5
18
Call OI
17
25,408
16
15
150,680
Put OI
14.5
14
Open interest by strike with the max-pain level marked, per expiry — heuristics over CBOE delayed chains, same strike band as the GEX profile.