# Open interest in EWZ calls expiring Oct 30 (1 week out) rose 191,168 at the Oct 20 settlement

As of the Oct 20, 2026 settlement: Open interest in EWZ calls expiring Oct 30 (1 week out) rose 191,168 at the Oct 20 settlement.
On the page at https://squawkflow.com/options-flow/2026-10-20/ewz-calls-oct-30-2026-open-interest-change: the evidence table and the rule this settlement figure passed; and up to six other EWZ snapshots from Oct 20, 2026.

192,771 to 383,939 contracts between the Oct 19 and Oct 20 settlements, 99% of the prior figure. Source: Cboe settlement open interest archive.

- Session: 2026-10-20
- Kind: Open interest change
- Status: Settled
- Expiry: 2026-10-30 (1 to 3 weeks)
- Rule: |change| >= 10000 or (>= 2000 and >= 50% of prior), and |change share| >= 2.0 x bucket median; prior OI >= 1000
- Baseline: median absolute open interest change share, contracts 1 to 3 weeks out, last 20 sessions, n = 7, value 0.0729

| Metric | Value |
|---|---:|
| changeShare | 0.9917 |
| daysToExpiry | 10 |
| openInterest | 383939 |
| openInterestChange | 191168 |
| priorOpenInterest | 192771 |
| priorSettlement | 2026-10-19 |
| settlement | 2026-10-20 |

## What happened next

This snapshot is itself a settlement figure.

Caveat: Open interest change, not trades; it does not say which side opened or closed.

Session page: https://squawkflow.com/options-flow/2026-10-20

## Citation

Source: SquawkFlow, https://squawkflow.com/options-flow/2026-10-20/ewz-calls-oct-30-2026-open-interest-change
Retrieved: 2026-10-22 04:42 ET
Attribution: cite the page URL rather than a copied number. Levels are
recomputed every session, so a number without its date is wrong within a day.

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