SPY· SPDR S&P 500 ETF Trust
Open interest · contracts by strike
Spot
746.8
Max Pain
735
Call OI
169,646
Put OI
379,052
P/C ratio
2.23
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 735
Spot 746.8
855
850
4,411
825
2,299
800
12,226
795
2,033
790
3,662
785
2,870
780
10,012
775
14,301
770
7,627
765
8,659
760
9,120
755
7,678
750
22,424
Call OI
745
11,014
10,774
740
24,994
12,016
735
25,040
5,462
Max pain
730
24,623
3,863
725
26,185
2,805
720
42,513
2,394
715
13,148
7,663
710
28,567
4,126
705
14,845
2,226
700
49,387
6,626
Put OI
695
18,171
690
13,092
685
8,476
680
6,655
675
8,964
670
21,844
665
3,658
660
5,369
655
4,366
650
6,709
645
6,216
640
12,802
635
Open interest by strike with the max-pain level marked, per expiry — heuristics over CBOE delayed chains, same strike band as the GEX profile.