MRK· Merck & Co.
Open interest · contracts by strike
Spot
128.5
Max Pain
122
Call OI
6,212
Put OI
4,179
P/C ratio
0.67
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 122
Spot 128.5
145
140
121
135
367
134
35
133
511
132
115
131
451
130
478
129
108
128
218
803
Call OI
127
781
465
Put OI
126
386
261
125
87
380
124
101
148
123
71
237
122
262
568
Max pain
121
145
238
120
186
144
119
121
322
118
127
117
206
116
167
166
115
457
76
114
125
113
507
64
112
69
38
111
70
110
80
Open interest by strike with the max-pain level marked, per expiry — heuristics over CBOE delayed chains, same strike band as the GEX profile.