# Open interest in SPY puts expiring Oct 26 rose 170,614 at the Oct 22 settlement

As of the Oct 22, 2026 settlement: Open interest in SPY puts expiring Oct 26 rose 170,614 at the Oct 22 settlement.
On the page at https://squawkflow.com/options-flow/2026-10-22/spy-puts-oct-26-2026-open-interest-change: the evidence table and the rule this settlement figure passed; and up to six other SPY snapshots from Oct 22, 2026.

127,468 to 298,082 contracts between the Oct 21 and Oct 22 settlements, 134% of the prior figure. Source: Cboe settlement open interest archive.

- Session: 2026-10-22
- Kind: Open interest change
- Status: Settled
- Expiry: 2026-10-26 (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 0.3101

| Metric | Value |
|---|---:|
| changeShare | 1.3385 |
| daysToExpiry | 4 |
| openInterest | 298082 |
| openInterestChange | 170614 |
| priorOpenInterest | 127468 |
| priorSettlement | 2026-10-21 |
| settlement | 2026-10-22 |

## 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/2026-10-22

## Citation

Source: SquawkFlow, https://squawkflow.com/options-flow/2026-10-22/spy-puts-oct-26-2026-open-interest-change
Retrieved: 2026-10-24 03:36 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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