Reading unit values: the honest way to interpret import-export data

When import or export values rise, it is tempting to conclude that prices have risen. But a larger value can simply mean a larger volume moved, a different mix of grades, or a change in where the cargo landed. Values alone rarely answer the question a buyer is actually asking.

Unit values — the value of a shipment divided by its volume — strip out most of that noise. Tracked consistently, they behave much like a price series: they respond to feedstock costs, freight and supply tightness, and they usually move in the same direction as the contract prices buyers see.

That said, unit values are not a perfect price. They average across grades and qualities, they lag the spot market because shipments reflect deals struck weeks earlier, and exchange-rate movements can reshape them without anything changing in the physical market.

The practical approach is to read unit values as a direction and a level, then check them against the price series you track. When both point the same way, you can be reasonably confident about the market. When they diverge, there is usually a story worth understanding — and often a negotiation position in it.