As of , published from Oct 21, 2026, 09:47 ET. Source: delayed broker chain.
On the page at 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.
| Measure | Value |
|---|---|
| Same-day share of volume | 72% |
| Same-day volume (contracts) | 93,133 |
| Same-day calls (contracts) | 44,959 |
| Same-day puts (contracts) | 48,174 |
| Tracked volume (contracts) | 129,474 |
The median is SPY's put/call volume ratio for contracts 1 to 3 weeks out over the last 9 sessions. 59,078 put and 5,695 call contracts by 09:47 ET on Oct 21, 2026. Tracked: up to 40 strikes around the money across 33 expirations.
SPY calls expiring that date in the strikes we track traded 1.7x their open interest, by 09:42 ET on Oct 21, 2026. Tracked: up to 40 strikes around the money across 33 expirations.
The median is SPY's call/put volume ratio for contracts 1 to 3 weeks out over the last 9 sessions. 4,208 call and 2,115 put contracts by 09:42 ET on Oct 21, 2026. Tracked: up to 40 strikes around the money across 33 expirations.
The median is SPY's put/call volume ratio for contracts within a week over the last 9 sessions. 3,084 put and 621 call contracts by 09:32 ET on Oct 21, 2026. Tracked: up to 40 strikes around the money across 33 expirations.
The median is SPY's put/call volume ratio for contracts within a week over the last 9 sessions. 2,039 put and 764 call contracts by 09:32 ET on Oct 21, 2026. Tracked: up to 40 strikes around the money across 33 expirations.