NSC· Norfolk Southern
Open interest · contracts by strike
Spot
314.6
Max Pain
310
Call OI
706
Put OI
444
P/C ratio
0.63
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 310
Spot 314.6
360
350
36
340
131
330
102
320
46
199
310
161
202
Call OI
300
67
23
290
80
280
57
270
32
Open interest by strike with the max-pain level marked, per expiry — heuristics over CBOE delayed chains, same strike band as the GEX profile.