Same-day contracts accounted for 69% of tracked SPY option volume by 09:32 ET
As of , published from Oct 28, 2026, 09:47 ET. Source: delayed broker chain.
On the page at squawkflow.com/options-flow/2026-10-28/spy-oct-28-2026-same-day-share: the follow-up at the next settlement and at the Oct 28, 2026 expiry, each added once recorded; the evidence table and the rule that fired; and up to six other SPY snapshots from Oct 28, 2026.
65,290 of 95,142 tracked contracts on Oct 28, 2026, puts 31,689 and calls 33,601. Tracked: up to 40 strikes around the money across 34 expirations.
Same day69%
Of which33,601 C / 31,689 P
Evidence
The numbers behind this snapshot, Oct 28, 2026, 09:32 ET. 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.
The median is SPY's call/put volume ratio for contracts within a week over the last 14 sessions. 4,819 call and 3,017 put contracts by 09:57 ET on Oct 28, 2026. Tracked: up to 40 strikes around the money across 34 expirations.
SPY puts expiring that date in the strikes we track traded 1.1x their open interest, by 09:42 ET on Oct 28, 2026. Tracked: up to 40 strikes around the money across 34 expirations.
The median is SPY's put/call volume ratio for contracts 1 to 3 weeks out over the last 14 sessions. 4,539 put and 606 call contracts by 09:32 ET on Oct 28, 2026. Tracked: up to 40 strikes around the money across 34 expirations.