The Baltic Dry Index (BDI) is a daily benchmark from the Baltic Exchange in London measuring the cost of shipping dry bulk commodities — iron ore, coal, grain — on global sea routes. It is one of the purest economic indicators: it cannot be manipulated by inventory builds or speculation. It reflects only real supply and demand for ships.
How the BDI Works
The Baltic Exchange surveys ship brokers daily for charter rate assessments on key routes for Capesize, Panamax and Supramax vessels. When more ships are needed than available, rates rise. When ships outnumber demand, they fall. Simple supply and demand.
Why it Matters for Investors
The BDI is a leading indicator for global industrial demand — rising when Chinese steel mills import iron ore, when farmers export grain. It typically moves 4–6 weeks ahead of the physical commodity flows. BDI in March 2026: 2,028 points — up sharply from 1,240, driven by Hormuz-related trade disruption.
| BDI Level | Signal | Interpretation |
|---|---|---|
| Below 900 | BUY | Cycle trough — best entry for dry bulk stocks |
| 900–3,000 | Neutral | Fair value territory |
| Above 3,000 | SELL | Cycle peak territory |