MSFT · OCT 9Session closed

Same-day contracts accounted for 71% of tracked MSFT option volume by 09:33 ET

As of Oct 9, 2026, 09:33 ET, published from Oct 9, 2026, 09:48 ET. Source: Schwab options chain.

11,911 of 16,817 tracked contracts on Oct 9, 2026, puts 3,900 and calls 8,011. Tracked: up to 40 strikes around the money across 23 expirations.

Evidence

Rule: same-day share >= 0.6 (absolute: baseline n 0 < 5); volume >= 10000
Values that cleared it: Share: 0.7083
Contracts traded behind each figure: Same day calls: 22; Same day puts: 19; Ticker: 312
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

MSFTCOCT 30Put/call by expiry
12:43 ET
MSFT calls outnumbered puts 2.5 to 1 in contracts expiring Oct 30 (3 weeks out)
3,324 call and 1,328 put contracts by 12:43 ET on Oct 9, 2026. Est. premium $4.8M calls, $873K puts. Tracked: up to 40 strikes around the money across 23 expirations.
Source: Schwab options chainMSFT page Details
MSFTC532.5OCT 9Volume vs open interest
10:23 ET
MSFT 532.5 calls expiring Oct 9 (same day) traded 5.3x their open interest
MSFT calls expiring that date in the strikes we track traded 0.7x their open interest, by 10:23 ET on Oct 9, 2026. Tracked: up to 40 strikes around the money across 23 expirations.
Source: Schwab options chainMSFT page Details
MSFTCOCT 23Put/call by expiry
10:23 ET
MSFT calls outnumbered puts 4.2 to 1 in contracts expiring Oct 23 (2 weeks out)
2,609 call and 616 put contracts by 10:23 ET on Oct 9, 2026. Est. premium $1.9M calls, $358K puts. Tracked: up to 40 strikes around the money across 23 expirations.
Source: Schwab options chainMSFT page Details