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 0.7x their open interest, against 5.0x for the 758 strike, by 09:37 ET on Nov 13, 2026. Tracked: up to 43 strikes around the money across 33 expirations.
PStrike5.0x
Expiry0.72x
Evidence
The numbers behind this snapshot, Nov 13, 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
5.0x
Volume / prior open interest, the expiry's tracked strikes
0.72x
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: 0.72; Ratio: 5.01
Contracts traded behind each figure
Expiry puts: 34
Baseline
this expiry's put volume/open interest, same session: 0.72
Baseline window
same expiry, same session (n = strikes with open interest)
The median is SPY's call/put volume ratio for contracts within a week over the last 20 sessions. 95,087 call and 60,901 put contracts by 15:57 ET on Nov 13, 2026. Tracked: up to 51 strikes around the money across 33 expirations.
The median is SPY's put/call volume ratio for contracts more than 3 months out over the last 20 sessions. 46,456 put and 538 call contracts by 10:02 ET on Nov 13, 2026. Tracked: up to 46 strikes around the money across 33 expirations.
The median is SPY's put/call volume ratio for contracts 1 to 3 months out over the last 20 sessions. 43,293 put and 2,595 call contracts by 09:57 ET on Nov 13, 2026. Tracked: up to 45 strikes around the money across 33 expirations.
Within 3 weeks: 850,412 put and 584,373 call contracts. 1 to 3 months out: 46,630 put and 7,019 call contracts. By 09:57 ET on Nov 13, 2026. Tracked: up to 45 strikes around the money across 33 expirations.
The median is SPY's put/call volume ratio for contracts within a week over the last 20 sessions. 2,121 put and 667 call contracts by 09:32 ET on Nov 13, 2026. Tracked: up to 40 strikes around the money across 33 expirations.
The median is SPY's call/put volume ratio for contracts within a week over the last 20 sessions. 22,563 call and 12,197 put contracts by 09:32 ET on Nov 13, 2026. Tracked: up to 40 strikes around the money across 33 expirations.