Data Sources and Coverage
Zenith combines third-party market datasets with internal processing and quality controls to support comparative analysis and simulation workflows.
Primary Coverage
- Daily and intraday equity price series.
- Company fundamentals and financial statement history.
- ETF and holdings datasets for look-through context.
- Derived indicators used in scoring and screening pipelines.
Update Cadence
Update frequency depends on the source feed and field type. Time-sensitive fields are refreshed on market schedules while slower-moving fundamentals follow provider publication cycles.
Quality Controls
- Ingestion checks for missing, stale, or malformed values.
- Cross-source reconciliation for key identifiers.
- Versioned transformation logic for reproducible outputs.
- Monitoring for abnormal shifts in core factors.