FIS· Fidelity National Information Services
Open interest · contracts by strike
Spot
38.2
Max Pain
40
Call OI
4,172
Put OI
2,554
P/C ratio
0.61
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 40
Spot 38.2
43
42.5
234
600
42
41
276
40
783
2,907
Call OI
39
129
203
38
37.5
819
Put OI
37
36
35
252
34
33
32.5
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
FIS 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.