For informational and educational purposes only. Not a trading application. Not investment advice. Past performance does not guarantee future results. Forecasts are general model estimates, often wrong, and scored in public.
Across the tracked strikes of that expiry, SPY puts traded 1.4x their open interest, against 8.2x for the 755 strike, by 09:37 ET on Nov 11, 2026. Tracked: up to 42 strikes around the money across 35 expirations.
PStrike8.2x
Expiry1.4x
Evidence
The numbers behind this snapshot, Nov 11, 2026, 09:37 ET. Session volume from delayed options chain snapshots, published at least 15 minutes after capture. Totals cover the strikes captured around the money, not every listed strike. Not individual trades. Premium is an estimate: volume times the quote midpoint.
Measure
Value
Volume / prior open interest, this strike
8.2x
Volume / prior open interest, the expiry's tracked strikes
1.4x
Days to expiry
0
Why it fired
Rule
volume/prior OI >= 5.0 and >= 3.0 x this expiry's put volume/OI; prior OI >= 1000; volume >= 2000
Values that cleared it
Expiry ratio: 1.42; Ratio: 8.15
Contracts traded behind each figure
Expiry puts: 37
Baseline
this expiry's put volume/open interest, same session: 1.42
Baseline window
same expiry, same session (n = strikes with open interest)
The median is SPY's call/put volume ratio for contracts 1 to 3 weeks out over the last 20 sessions. 80,785 call and 7,370 put contracts by 12:36 ET on Nov 11, 2026. Tracked: up to 46 strikes around the money across 35 expirations.
The median is SPY's call/put volume ratio for contracts 1 to 3 months out over the last 20 sessions. 35,232 call and 7,534 put contracts by 10:27 ET on Nov 11, 2026. Tracked: up to 42 strikes around the money across 35 expirations.
The median is SPY's call/put volume ratio for contracts within a week over the last 20 sessions. 8,891 call and 5,602 put contracts by 10:02 ET on Nov 11, 2026. Tracked: up to 42 strikes around the money across 35 expirations.
The median is SPY's call/put volume ratio for contracts within a week over the last 20 sessions. 31,482 call and 19,933 put contracts by 09:42 ET on Nov 11, 2026. Tracked: up to 42 strikes around the money across 35 expirations.
The median is SPY's call/put volume ratio for contracts within a week over the last 20 sessions. 27,584 call and 13,338 put contracts by 09:37 ET on Nov 11, 2026. Tracked: up to 42 strikes around the money across 35 expirations.
The median is SPY's call/put volume ratio for contracts same day over the last 20 sessions. 109,432 call and 38,350 put contracts by 09:32 ET on Nov 11, 2026. Tracked: up to 40 strikes around the money across 35 expirations.