# Open interest in MS calls expiring Oct 9 rose 3,908 at the Oct 6 settlement

As of the Oct 6, 2026 settlement: Open interest in MS calls expiring Oct 9 rose 3,908 at the Oct 6 settlement. 7,648 to 11,556 contracts between the Oct 5 and Oct 6 settlements, 51% of the prior figure. Source: Cboe settlement open interest archive.

- Session: 2026-10-06
- Kind: Open interest change
- Status: Settled
- Expiry: 2026-10-09 (within a week)
- 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 within a week, last 20 sessions, n = 7, value 0.0677

| Metric | Value |
|---|---:|
| changeShare | 0.511 |
| daysToExpiry | 3 |
| openInterest | 11556 |
| openInterestChange | 3908 |
| priorOpenInterest | 7648 |
| priorSettlement | 2026-10-05 |
| settlement | 2026-10-06 |

## 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/2026-10-06

## Citation

Source: SquawkFlow, https://squawkflow.com/options-flow/2026-10-06/ms-calls-oct-9-2026-open-interest-change
Retrieved: 2026-10-11 16:44 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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