STX: Top expiration concentration increased
Changed review order 3 · not on the watchlist
1 · Evidence (read from the M14 attention reason)
- Reason
- Top expiration concentration increased (EXPIRATION_CONCENTRATION_INCREASED, metric expiration_top_share, layer Options activity)
- Change state
- STRENGTHENING
- Current / previous
- 0.84 / 0.62
- Delta
- 0.22
- Display threshold
- expiration_share_min_delta 0.10 absolute
- Sessions
- current 2026-09-30 · previous 2026-09-29 · evaluated 2026-10-02 · as of 2026-10-04T18:29:53.113701Z
- Reason codes
- delta_meets_display_threshold
- Eligibility (ALERT_POLICY_V1)
- REASON_TYPE_INCLUDED, REASON_ACTIVE
- Source layers
- OPTIONS_ACTIVITY
- Provenance
- DELAYED daily aggregates (M9/M10) via M13 metrics, derived on read
2 · Freshness and coverage
Technical 2026-10-02 (Current session) · Options activity 2026-09-30 (Delayed) · provider DELAYED
- Activity feature
- AVAILABLE_DELAYED
- 5D / 20D baseline status
- AVAILABLE / AVAILABLE
- Active contracts
- 31
- Contract set
- OPTIONS_SELECTION_M9_V1 selected contract set; descriptive of the current selected contracts only, not a whole-market flow statement
3 · Identity and versions
- Alert id (ALERT_IDENTITY_V1)
- c9650fac21d10a0bac9dbaa456f41863af76f9925375bfcf0ed4e5a4d7b557cf
- Scope
- SYMBOL
- Monitor
- OPPORTUNITY_MONITOR_V1 74276a3f4c21…
- Policy
- ALERT_POLICY_V1 9cfc4be4420d…
- Intelligence
- OPTIONS_INTELLIGENCE_V1 8d76c3252250…
- Data origin
- PERSISTED_PROVIDER_DATA
4 · Workflow state (user state, not a trading state)
- State
- New
- First seen
- —
- Seen
- —
- Acknowledged
- —
- Dismissed
- —
Descriptive alerts only (ALERT_POLICY_V1, policy 9cfc4be4420d…, monitor config 74276a3f4c21…). An alert is an accepted M14 attention reason that reached its versioned display threshold; thresholds are not optimized against outcomes. Category order is review order, never expected profitability. Seen / acknowledged / dismissed are your workflow states, not trading states. Options-derived alerts describe the current selected contract set, not whole-market flow. Nothing here is a recommendation, prediction or score.