# Open interest in SPY calls expiring Oct 26 (2 weeks out) rose 3,865 at the Oct 13 settlement

As of the Oct 13, 2026 settlement: Open interest in SPY calls expiring Oct 26 (2 weeks out) rose 3,865 at the Oct 13 settlement. 2,176 to 6,041 contracts between the Oct 12 and Oct 13 settlements, 178% of the prior figure. Source: Cboe settlement open interest archive.

- Session: 2026-10-13
- Kind: Open interest change
- Status: Settled
- Expiry: 2026-10-26 (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 = 20, value 0.3414

| Metric | Value |
|---|---:|
| changeShare | 1.7762 |
| daysToExpiry | 13 |
| openInterest | 6041 |
| openInterestChange | 3865 |
| priorOpenInterest | 2176 |
| priorSettlement | 2026-10-12 |
| settlement | 2026-10-13 |

## 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/2026-10-13

## Citation

Source: SquawkFlow, https://squawkflow.com/options-flow/2026-10-13/spy-calls-oct-26-2026-open-interest-change
Retrieved: 2026-10-15 04:25 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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