SOFI puts expiring that date in the strikes we track traded 0.3x their open interest, by 14:20 ET on Oct 29, 2026. Tracked: up to 40 strikes around the money across 18 expirations.
PStrike5.1x
Expiry0.26x
Evidence
The numbers behind this snapshot, Oct 29, 2026, 14:20 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
5.1x
Volume / prior open interest, the expiry's tracked strikes
0.26x
Days to expiry
1
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: 0.26; Ratio: 5.07
Contracts traded behind each figure
Expiry puts: 22
Baseline
this expiry's put volume/open interest, same session: 0.26
Baseline window
same expiry, same session (n = strikes with open interest)
The median is SOFI's call/put volume ratio for contracts 1 to 3 months out over the last 15 sessions. 13,814 call and 1,457 put contracts by 10:14 ET on Oct 29, 2026. Tracked: up to 40 strikes around the money across 18 expirations.
The median is SOFI's call/put volume ratio for contracts 1 to 3 weeks out over the last 15 sessions. 3,460 call and 563 put contracts by 10:04 ET on Oct 29, 2026. Tracked: up to 40 strikes around the money across 18 expirations.
Within 3 weeks: 7,571 put and 30,598 call contracts. 1 to 3 months out: 2,613 put and 13,357 call contracts. By 09:49 ET on Oct 29, 2026. Tracked: up to 40 strikes around the money across 18 expirations.
The median is SOFI's call/put volume ratio for contracts within a week over the last 12 sessions. 14,793 call and 3,895 put contracts by 09:44 ET on Oct 29, 2026. Tracked: up to 40 strikes around the money across 18 expirations.