# Open interest in SPY puts expiring Oct 12 rose 239,444 at the Oct 9 settlement

As of the Oct 9, 2026 settlement: Open interest in SPY puts expiring Oct 12 rose 239,444 at the Oct 9 settlement. 148,297 to 387,741 contracts between the Oct 8 and Oct 9 settlements, 161% of the prior figure. Source: Cboe settlement open interest archive.

- Session: 2026-10-09
- Kind: Open interest change
- Status: Settled
- Expiry: 2026-10-12 (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 = 20, value 0.3893

| Metric | Value |
|---|---:|
| changeShare | 1.6146 |
| daysToExpiry | 3 |
| openInterest | 387741 |
| openInterestChange | 239444 |
| priorOpenInterest | 148297 |
| priorSettlement | 2026-10-08 |
| settlement | 2026-10-09 |

## 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/2026-10-09

## Citation

Source: SquawkFlow, https://squawkflow.com/options-flow/2026-10-09/spy-puts-oct-12-2026-open-interest-change
Retrieved: 2026-10-13 03:44 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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