QQQPOCT 20Open interest change
Open interest in QQQ puts expiring Oct 20 (1 week out) rose 17,872 at the Oct 12 settlement
8,887 to 26,759 contracts between the Oct 9 and Oct 12 settlements, 201% of the prior figure.
QQQ · CALLS · OCT 13Settled
Open interest in QQQ calls expiring Oct 13 rose 59,719 at the Oct 12 settlement
As of . Source: Cboe settlement open interest archive.
42,528 to 102,247 contracts between the Oct 9 and Oct 12 settlements, 140% of the prior figure.
Evidence
| Measure | Value |
|---|---|
| Open interest, earlier settlement | 42,528 |
| Open interest, later settlement | 102,247 |
| Change (contracts) | +59,719 |
| Change as a share of the earlier figure | 140% |
| Earlier settlement | Oct 9, 2026 |
| Later settlement | Oct 12, 2026 |
| Days to expiry | 1 |
Why it fired
- Rule
- |change| >= 10000 or (>= 2000 and >= 50% of prior), and |change share| >= 2.0 x bucket median; prior OI >= 1000
- Values that cleared it
- Change: 59,719; Change as a share of the earlier figure: 1.4042
- Contracts traded behind each figure
- Open interest changed: 66
- Baseline
- median absolute open interest change share, contracts within a week: 0.4661
- Baseline window
- last 20 sessions
- Baseline n
- 20
- Claim level
- 0, a reported fact
What happened next
This snapshot is itself a settlement figure, so it has no follow-up of its own.
More QQQ snapshots, Oct 12, 2026
All QQQ snapshots on the hub- QQQCOCT 20Put/call by expiry
QQQ calls outnumbered puts 3.7 to 1 in contracts expiring Oct 20 (1 week out)
11,821 call and 3,222 put contracts by 15:59 ET on Oct 12, 2026. Est. premium $5.2M calls, $1.5M puts. Tracked: up to 40 strikes around the money across 31 expirations.
- QQQCOCT 23Put/call by expiry
QQQ calls outnumbered puts 2.7 to 1 in contracts expiring Oct 23 (2 weeks out)
5,792 call and 2,117 put contracts by 10:00 ET on Oct 12, 2026. Est. premium $3.5M calls, $1.6M puts. Tracked: up to 40 strikes around the money across 32 expirations.
- QQQPNOV 20Put/call by expiry
QQQ puts expiring Nov 20 traded 9.8x the calls on that date
15,017 put and 1,527 call contracts by 09:40 ET on Oct 12, 2026. Est. premium $16.8M puts, $2.2M calls. Tracked: up to 40 strikes around the money across 32 expirations.
- QQQC748OCT 12Volume vs open interest
QQQ 748 calls expiring Oct 12 (same day) traded 10.3x their open interest
QQQ calls expiring that date in the strikes we track traded 1.4x their open interest, by 09:40 ET on Oct 12, 2026. Tracked: up to 40 strikes around the money across 32 expirations.
- QQQNear vs far dates
QQQ put/call volume ratio held at 1.13 within 3 weeks, against 8.28 1 to 3 months out
Within 3 weeks: 169,516 put and 150,521 call contracts. 1 to 3 months out: 16,043 put and 1,937 call contracts. By 09:40 ET on Oct 12, 2026. Tracked: up to 40 strikes around the money across 32 expirations.