QQQ puts expiring that date in the strikes we track traded 0.8x their open interest, by 09:35 ET on Oct 20, 2026. Tracked: up to 40 strikes around the money across 31 expirations.
PStrike5.6x
Expiry0.81x
Evidence
The numbers behind this snapshot, Oct 20, 2026, 09:35 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
5.6x
Volume / prior open interest, the expiry's tracked strikes
0.81x
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: 0.81; Ratio: 5.57
Contracts traded behind each figure
Expiry puts: 38
Baseline
this expiry's put volume/open interest, same session: 0.81
Baseline window
same expiry, same session (n = strikes with open interest)
The median is QQQ's call/put volume ratio for contracts 1 to 3 weeks out over the last 8 sessions. 14,701 call and 6,639 put contracts by 10:14 ET on Oct 20, 2026. Tracked: up to 40 strikes around the money across 31 expirations.
The median is QQQ's call/put volume ratio for contracts within a week over the last 8 sessions. 6,483 call and 3,355 put contracts by 09:39 ET on Oct 20, 2026. Tracked: up to 40 strikes around the money across 31 expirations.
The median is QQQ's put/call volume ratio for contracts within a week over the last 8 sessions. 5,795 put and 2,223 call contracts by 09:35 ET on Oct 20, 2026. Tracked: up to 40 strikes around the money across 31 expirations.
The median is QQQ's put/call volume ratio for contracts same day over the last 7 sessions. 94,332 put and 57,749 call contracts by 09:35 ET on Oct 20, 2026. Tracked: up to 40 strikes around the money across 31 expirations.