Five Bloomberg tabs.
One screen.
Real-time energy market intelligence: live AIS vessel flows at major energy ports, EIA fundamentals, Brent-WTI spread, tanker pressure index, and AI briefs. 5 ports tracked. Free, no account.
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Everything a macro trader needs in one place
Real-Time AIS Vessel Tracking
Live vessel counts, anchored ratios, and congestion scores updated hourly across major energy ports using AIS transponder data.
EIA Fundamentals & Spreads
Live EIA crude / Cushing / distillate inventories, Brent-WTI spread, and 3-2-1 crack spread — the macro view, in one panel.
Floating Storage Detection
Identifies laden tankers sitting at anchor across US Gulf, Rotterdam, and Singapore — a leading indicator of oversupply.
Chokepoint Watch — Hormuz
Live transit count, tanker / LNG class split, and 24h AIS gap (dark fleet) tracker for the Strait of Hormuz.
Tanker Pressure Index
Proprietary composite of FRO, DHT, INSW, and TNK price action — the equity market's read on tanker freight conditions.
AI Market Briefs
Claude AI synthesizes vessel anomalies, EIA prints, and price action into directional briefs with entry and invalidation context.
5 Ports Monitored 24/7
Covering the world's most trade-critical chokepoints, energy terminals, and container hubs.
LA / Long Beach
Container hub
Largest US container port
Singapore
Oil & container
Global bunkering capital
Rotterdam
Energy & mixed
Europe's largest port
Houston
Energy hub
US crude & LNG exports
Sabine Pass
LNG terminal
US LNG export leader
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How it works
AIS data collected
Every hour, HarborSignal pulls live vessel positions from AIS transponders at each monitored port and chokepoint.
Anomalies detected
The backend compares the latest snapshot to the rolling baseline. Significant changes in vessel count or congestion score trigger a signal.
Claude AI analyzes
Claude reads the anomaly alongside port-specific context (what cargo flows through, which tickers are correlated) and generates a plain-English signal.
You trade smarter
Signals are published to the dashboard with confidence scores, affected tickers, and the specific reasoning — no black box.
Get port anomaly alerts in your inbox
Free weekly signals. When congestion spikes at Ras Tanura or Singapore floods with tankers, you'll know before the market does.
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Or explore the live dashboard →HarborSignal is a free, general-purpose energy market intelligence publication. AI briefs are pattern analysis on vessel and price data, not financial advice, and are not produced by a licensed investment adviser or commodity trading adviser. Past patterns do not guarantee future results. Legal & Risk Disclosures