FAST· Fastenal
Open interest · contracts by strike
Spot
49.4
Max Pain
47.5
Call OI
14,166
Put OI
3,019
P/C ratio
0.21
Open interest by strike (contracts)
Call OIPut OISpot / max pain
Max pain 47.5
Spot 49.4
55
1,510
52.5
5,692
Call OI
50
619
5,005
47.5
1,450
1,347
Put OI
45
608
323
42.5
313
289
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
FAST 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.