SPY · OCT 13Session closed

Same-day contracts accounted for 70% of tracked SPY option volume by 09:32 ET

As of Oct 13, 2026, 09:32 ET, published from Oct 13, 2026, 09:47 ET. Source: Schwab options chain.

64,688 of 92,332 tracked contracts on Oct 13, 2026, puts 36,583 and calls 28,105. Tracked: up to 40 strikes around the money across 34 expirations.

Evidence

Rule: same-day share >= 0.6 (absolute: baseline n 0 < 5); volume >= 10000
Values that cleared it: Share: 0.7006
Contracts traded behind each figure: Same day calls: 31; Same day puts: 33; Ticker: 537
Baseline: median same-day share of option volume: not set yet
Baseline window: last 20 sessions
Baseline n: 0, so the fixed threshold applied
Claim level: 1, arithmetic on reported figures

SPYC778OCT 13Volume vs open interest
10:12 ET
SPY 778 calls expiring Oct 13 (same day) traded 11.9x their open interest
SPY calls expiring that date in the strikes we track traded 3.9x their open interest, by 10:12 ET on Oct 13, 2026. Tracked: up to 40 strikes around the money across 34 expirations.
Source: Schwab options chainSPY page Details
SPYPOCT 30Put/call by expiry
09:42 ET
SPY puts expiring Oct 30 (2 weeks out) traded 4.1x the calls on that date
5,332 put and 1,285 call contracts by 09:42 ET on Oct 13, 2026. Est. premium $2.2M puts, $791K calls. Tracked: up to 40 strikes around the money across 34 expirations.
Source: Schwab options chainSPY page Details
SPYPOCT 16Put/call by expiry
09:32 ET
SPY puts expiring Oct 16 traded 3.0x the calls on that date
5,675 put and 1,880 call contracts by 09:32 ET on Oct 13, 2026. Est. premium $1.1M puts, $413K calls. Tracked: up to 40 strikes around the money across 34 expirations.
Source: Schwab options chainSPY page Details