As of , published from Oct 19, 2026, 09:52 ET. Source: delayed broker chain.
On the page at squawkflow.com/options-flow/2026-10-19/spy-771-calls-oct-20-2026-volume-vs-open-interest: the follow-up at the next settlement and at the Oct 20, 2026 expiry, each added once recorded; the evidence table and the rule that fired; and up to six other SPY snapshots from Oct 19, 2026.
SPY calls expiring that date in the strikes we track traded 0.4x their open interest, by 09:37 ET on Oct 19, 2026. Tracked: up to 40 strikes around the money across 33 expirations.
| Measure | Value |
|---|---|
| Volume / prior open interest, this strike | 5.8x |
| Volume / prior open interest, the expiry's tracked strikes | 0.38x |
| Days to expiry | 1 |
The median is SPY's put/call volume ratio for contracts 1 to 3 weeks out over the last 7 sessions. 159,948 put and 22,769 call contracts by 11:32 ET on Oct 19, 2026. Tracked: up to 40 strikes around the money across 33 expirations.
The median is SPY's call/put volume ratio for contracts within a week over the last 7 sessions. 27,632 call and 14,860 put contracts by 09:37 ET on Oct 19, 2026. Tracked: up to 40 strikes around the money across 33 expirations.
The median is SPY's call/put volume ratio for contracts within a week over the last 7 sessions. 3,868 call and 1,681 put contracts by 09:37 ET on Oct 19, 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 7 sessions. 3,366 call and 870 put contracts by 09:32 ET on Oct 19, 2026. Tracked: up to 40 strikes around the money across 33 expirations.
The median is SPY's call/put volume ratio for contracts within a week over the last 7 sessions. 4,394 call and 2,111 put contracts by 09:32 ET on Oct 19, 2026. Tracked: up to 40 strikes around the money across 33 expirations.
88,715 of 136,214 tracked contracts on Oct 19, 2026, puts 35,690 and calls 53,025. Tracked: up to 40 strikes around the money across 33 expirations.