Private PAPER-trading research dashboard
Stock Scanner
Stock Scanner is a private research system for observing a PAPER stock-scanning pipeline without exposing trading controls on the web. The dashboard shows what entered the discovery pool, what passed or failed deterministic filters, whether a strategy produced a signal, what the AI review said, and what the broker ledger recorded.
Private read-only operational dashboard

Project snapshot
- Built for
- Private review of a PAPER scanner's selection, decision, and broker evidence
- Core workflow
- Discovery pool → deterministic filters → strategy signal → AI verdict → broker and realized-result evidence
- Current state
- Password-protected read-only dashboard; no order controls are exposed
What the product actually does
Five views into the discovery pool
The scanner workspace includes High of Day Momentum, Running Up, 5 Pillars, Continuation, and Top Gainers views. Each widget has adjustable browser-local filters, its own alarm, visibility controls, and a dedicated pop-out route. Rows can be searched by ticker, strategy, or rejection reason and opened into a full metric and provenance drawer.
Decision evidence stays separated
The dashboard distinguishes selected, passed, filtered, signaled, reviewed, ordered, positioned, and closed stages. AI labels distinguish a current REVIEW, WATCH, or AVOID verdict from historical evidence and from a row that was never evaluated. Deterministic setup scores and shadow-model contributions are shown for audit rather than collapsed into one unexplained badge.
Operational visibility without trading authority
A read-only publisher collects bounded scanner telemetry and sends it to an authenticated ingest route backed by durable snapshot storage. The web interface shows staleness, stream and scanner health, broker lifecycle summaries, session navigation, trade outcomes, realized PAPER P and L, directional accuracy, threshold accuracy, and Brier score. The broker remains authoritative for positions and fills.
BroadBuilder’s role
What BroadBuilder delivered
BroadBuilder developed the private control-room interface, multi-scanner workspace, telemetry contract, read-only publisher, secure ingest, session and health reporting, metric drawers, alarms, evidence labels, model-audit views, and fail-closed production controls.