IWM 277 puts expiring Oct 13 (same day) traded 5.7x their open interest
As of , published from Oct 13, 2026, 10:06 ET. Source: Schwab options chain.
IWM puts expiring that date in the strikes we track traded 1.4x their open interest, by 09:51 ET on Oct 13, 2026. Tracked: up to 40 strikes around the money across 34 expirations.
PStrike5.7x
Expiry1.4x
Evidence
The numbers behind this snapshot, Oct 13, 2026, 09:51 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
5.7x
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: 1.35; Ratio: 5.72
Contracts traded behind each figure
Expiry puts: 18
Baseline
this expiry's put volume/open interest, same session: 1.35
Baseline window
same expiry, same session (n = strikes with open interest)
13,622 put and 891 call contracts by 13:25 ET on Oct 13, 2026. Est. premium $4.0M puts, $302K calls. Tracked: up to 40 strikes around the money across 34 expirations.
27,149 put and 10,434 call contracts by 12:01 ET on Oct 13, 2026. Est. premium $4.9M puts, $2.0M calls. Tracked: up to 40 strikes around the money across 34 expirations.
76,612 put and 18,375 call contracts by 10:56 ET on Oct 13, 2026. Est. premium $20.3M puts, $3.5M calls. Tracked: up to 40 strikes around the money across 34 expirations.
13,979 call and 3,084 put contracts by 10:21 ET on Oct 13, 2026. Est. premium $2.3M calls, $1.1M puts. Tracked: up to 40 strikes around the money across 34 expirations.
Within 3 weeks: 26,542 put and 66,140 call contracts. 1 to 3 months out: 2,121 put and 1,796 call contracts. By 09:41 ET on Oct 13, 2026. Tracked: up to 40 strikes around the money across 34 expirations.