The Darkpool Stock Scanner detects unusual institutional volume, hidden block trades, and darkpool print activity in real time — powered by Polygon.io's institutional data feeds. Free. No account. No paywall.
FREE TOOL // WEB + ANDROID // POWERED BY POLYGON.IO // SCRIPTMASTERLABS™
WHAT IT DOES
Identifies off-exchange block trades executed in dark pools — transactions that don't appear on lit exchanges but reveal institutional conviction and positioning.
Flags tickers with volume that significantly deviates from their historical baseline. Unusual volume often precedes major price moves — retail sees it after the fact, you see it live.
Powered by Polygon.io institutional-grade data infrastructure — the same data backbone used by hedge funds, market makers, and professional trading desks.
Scan across multiple tickers simultaneously. No single-stock limitation. Watch your entire watchlist for institutional activity in one view.
No installation required. Works directly in your browser on any device. Android app version available for on-the-go institutional monitoring.
No signup. No email. No paywall. Launch it and start scanning immediately. ScriptMasterLabs builds free tools that actually work — this is one of them.
HOW TO USE IT
Click Launch Free Scanner above. Opens instantly in your browser — no download, no account, no install required.
Type in the tickers you want to monitor. The scanner will pull live institutional volume data from Polygon.io feeds.
Any ticker showing unusual darkpool activity or volume anomalies gets flagged. Green = elevated. Red = extreme deviation.
For maximum edge, combine darkpool signals with the SML Market Maker Inventory Model and Psyche Matrix on TradingView.
COMMON QUESTIONS
Dark pools are private financial exchanges where institutional investors trade large blocks of securities away from public markets. They exist so large orders don't move the market before execution. When you see a dark pool print, you're seeing evidence of institutional conviction — a big player made a move they didn't want the public to see until after it was done.
ScriptMasterLabs builds free tools as part of its community mission. The Darkpool Scanner is a lead magnet for the SML ecosystem — we want serious traders to experience institutional-grade tooling before they invest in paid indicators. No hidden upsells inside the scanner itself.
The scanner is powered by Polygon.io's real-time data infrastructure. Latency depends on your Polygon.io tier. The free tool uses near-real-time data with a 15-minute delay on some feeds. For zero-latency institutional flow, upgrade your Polygon.io key.
Yes — and that's the recommended setup. Run the Darkpool Scanner in one window to identify institutional activity, and use your SML TradingView indicators to time precise entries based on that intelligence.