Shipping indices, port congestion, semiconductor availability, and critical materials
Direct freight and port data is mostly behind paywalls, so this page reads global supply-chain stress through market proxies: the share prices of four listed shipping and logistics companies - Star Bulk, ZIM, C.H. Robinson and Expeditors - refreshed every 30 minutes, with their 1-month, 3-month and 1-year moves. From those it models congestion at three major ports and combines everything into a stress score and health indexes; the score feeds the Supply Chain region on the main dashboard.
How to read it. A sharp fall in shipping stocks alongside stress elsewhere usually means markets expect trade volumes to drop; a sudden spike can mean capacity is scarce and freight rates are jumping. Read the four proxies together - one company moving on its own is more often company news than a supply-chain shock.
Limitations. These are proxies, not freight indexes: the card labelled Baltic Dry follows a dry-bulk shipping stock, not the index itself, and port congestion is modelled from the same price moves rather than measured. Semiconductor lead times and critical-material risk are hand-maintained reference values that only change when updated, and they keep a fixed amount of stress in the score.