# Same-day contracts accounted for 72% of tracked SPY option volume by 09:32 ET

As of Oct 21, 2026, 09:32 ET: Same-day contracts accounted for 72% of tracked SPY option volume by 09:32 ET.
On the page at https://squawkflow.com/options-flow/2026-10-21/spy-oct-21-2026-same-day-share: the follow-up at the next settlement and at the Oct 21, 2026 expiry, each added once recorded; the evidence table and the rule that fired; and up to six other SPY snapshots from Oct 21, 2026.

93,133 of 129,474 tracked contracts on Oct 21, 2026, puts 48,174 and calls 44,959. Tracked: up to 40 strikes around the money across 33 expirations. Source: delayed broker chain.

- Session: 2026-10-21
- Kind: Same-day share
- Status: Session in progress
- Expiry: 2026-10-21 (same day)
- Rule: same-day share >= 0.6 (absolute: baseline n 0 < 5); volume >= 10000
- Baseline: median same-day share of option volume, last 20 sessions, n = 0

| Metric | Value |
|---|---:|
| sameDayCallVolume | 44959 |
| sameDayPutVolume | 48174 |
| sameDayShare | 0.7193 |
| sameDayVolume | 93133 |
| totalVolume | 129474 |

## What happened next

- Next settlement: pending the next settlement.
- Expiry: pending expiry.

Caveat: Session volume from delayed options chain snapshots, published at least 15 minutes after capture. Totals cover the strikes captured around the money, not every listed strike. Not individual trades. Premium is an estimate: volume times the quote midpoint.

Session page: https://squawkflow.com/options-flow/2026-10-21

## Citation

Source: SquawkFlow, https://squawkflow.com/options-flow/2026-10-21/spy-oct-21-2026-same-day-share
Retrieved: 2026-10-21 10:38 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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