WST· West Pharmaceutical Services
Open interest · contracts by strike
Spot
359
Max Pain
310
Call OI
471
Put OI
20
P/C ratio
0.04
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 310
Spot 359
410
400
390
380
370
360
33
350
40
340
28
330
336
Call OI
320
310
24
Put OI
Open interest by strike with the max-pain level marked, per expiry — heuristics over CBOE delayed chains, same strike band as the GEX profile.