NTRS· Northern Trust
Open interest · contracts by strike
Spot
173.8
Max Pain
165
Call OI
531
Put OI
1,007
P/C ratio
1.90
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 165
Spot 173.8
195
190
47
185
45
180
56
175
21
172
Call OI
170
63
64
165
455
55
Put OI
160
25
155
28
59
150
412
Open interest by strike with the max-pain level marked, per expiry — heuristics over CBOE delayed chains, same strike band as the GEX profile.