WAT· Waters Corporation
Open interest · contracts by strike
Spot
375
Max Pain
350
Call OI
396
Put OI
179
P/C ratio
0.45
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 350
Spot 375
430
420
410
400
390
19
380
13
370
14
360
21
123
350
23
215
Call OI
340
330
320
126
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.