EWZPOCT 23Open interest change
Open interest in EWZ puts expiring Oct 23 (2 weeks out) rose 23,266 at the Oct 9 settlement
81,113 to 104,379 contracts between the Oct 8 and Oct 9 settlements, 29% of the prior figure.
EWZ · CALLS · JAN 15 '27Settled
Open interest in EWZ calls expiring Jan 15, 2027 rose 301,915 at the Oct 9 settlement
As of . Source: Cboe settlement open interest archive.
584,724 to 886,639 contracts between the Oct 8 and Oct 9 settlements, 52% of the prior figure.
Evidence
| Measure | Value |
|---|---|
| Open interest, earlier settlement | 584,724 |
| Open interest, later settlement | 886,639 |
| Change (contracts) | +301,915 |
| Change as a share of the earlier figure | 52% |
| Earlier settlement | Oct 8, 2026 |
| Later settlement | Oct 9, 2026 |
| Days to expiry | 98 |
Why it fired
- Rule
- |change| >= 10000 or (>= 2000 and >= 50% of prior) (absolute: baseline n 2 < 5); prior OI >= 1000
- Values that cleared it
- Change: 301,915; Change as a share of the earlier figure: 0.5163
- Contracts traded behind each figure
- Open interest changed: 22
- Baseline
- median absolute open interest change share, contracts more than 3 months out: 0.0343
- Baseline window
- last 20 sessions
- Baseline n
- 2, 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.