EWZPNOV 6Open interest change
Open interest in EWZ puts expiring Nov 6 rose 8,191 at the Oct 14 settlement
7,228 to 15,419 contracts between the Oct 13 and Oct 14 settlements, 113% of the prior figure.
EWZ · PUTS · OCT 23Settled
Open interest in EWZ puts expiring Oct 23 (1 week out) rose 66,434 at the Oct 14 settlement
As of . The evidence table and the rule this settlement figure passed are at squawkflow.com/options-flow/2026-10-14/ewz-puts-oct-23-2026-open-interest-change. Source: Cboe settlement open interest archive.
111,420 to 177,854 contracts between the Oct 13 and Oct 14 settlements, 60% of the prior figure.
Evidence
| Measure | Value |
|---|---|
| Open interest, earlier settlement | 111,420 |
| Open interest, later settlement | 177,854 |
| Change (contracts) | +66,434 |
| Change as a share of the earlier figure | 60% |
| Earlier settlement | Oct 13, 2026 |
| Later settlement | Oct 14, 2026 |
| Days to expiry | 9 |
Why it fired
- Rule
- |change| >= 10000 or (>= 2000 and >= 50% of prior) (absolute: baseline n 4 < 5); prior OI >= 1000
- Values that cleared it
- Change: 66,434; Change as a share of the earlier figure: 0.5962
- Contracts traded behind each figure
- Open interest changed: 18
- Baseline
- median absolute open interest change share, contracts 1 to 3 weeks out: 0.0461
- Baseline window
- last 20 sessions
- Baseline n
- 4, so the fixed threshold applied
- 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.