PSX· Phillips 66
Open interest · contracts by strike
Spot
169.1
Max Pain
172.5
Call OI
508
Put OI
329
P/C ratio
0.65
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 172.5
Spot 169.1
192.5
190
51
187.5
4
185
38
43
182.5
52
180
20
62
177.5
8
55
175
33
28
172.5
52
96
Call OI
170
43
11
167.5
6
9
165
61
Put OI
162.5
4
160
30
157.5
13
155
4
152.5
15
150
149
148
46
147
46
145
Open interest by strike with the max-pain level marked, per expiry — heuristics over CBOE delayed chains, same strike band as the GEX profile.