Scan Result Cases - Practical Workbook Scenarios

Dissecting Screener Behavior Across Realistic Market Conditions

Screening tools execute strict Boolean statements against database snapshots without context. When unexpected results emerge, the root cause is rarely calculation failure; rather, it is a mismatch between the conceptual research question and parameter formulation.

Each scenario documented in this module walks through an empirical post-mortem: establishing baseline medians, resolving collinear filter interactions, testing sector versus broad market universes, and applying structured manual verification.