FDS· FactSet
Open interest · contracts by strike
Spot
276.9
Max Pain
270
Call OI
1,273
Put OI
1,743
P/C ratio
1.37
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 270
Spot 276.9
310
78
300
520
Call OI
290
169
79
280
68
246
270
465
166
Put OI
260
374
137
250
252
39
240
398
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
FDS 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.