SPY· SPDR S&P 500 ETF Trust
Open interest · contracts by strike
Spot
760.9
Max Pain
764
Call OI
14,855
Put OI
37,921
P/C ratio
2.55
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 764
Spot 760.9
875
865
850
835
820
809
806
803
800
797
794
791
788
1,044
785
1,089
782
779
776
719
773
825
770
846
5,111
Call OI
767
1,510
1,361
764
874
667
Max pain
761
2,013
1,055
758
2,248
755
11,526
Put OI
752
749
1,055
746
743
683
740
1,519
737
734
5,013
731
728
725
813
722
719
710
2,248
695
4,060
680
2,099
665
650
Open interest by strike with the max-pain level marked, per expiry — heuristics over CBOE delayed chains, same strike band as the GEX profile.
History
SPY open interest, night by night.
Total call and put contracts held on each recorded session — the level the strike profile above is a snapshot of.
10 Jun → 14 Sep
OI totals over time
Contracts outstanding, summed over the whole captured chain — every listed expiry and strike, wider than the strike band and single expiry shown in the profile above.
call OI, contractsput OI, contracts
One reading per session, captured nightly after the close, 10 Jun → 14 Sep, over CBOE delayed (~15-min) chains, computed across the full listed chain. Gaps are weekends, holidays and sessions a capture missed; any reading can be absent on a session that was captured, and the series is broken rather than drawn through it.