How USDA Market News works

What AMS Market News actually is

USDA's Agricultural Marketing Service runs a network of market reporters who call, email, and visit wholesale buyers and sellers every reporting day. They ask what actually traded: what price, what volume, what grade. This is not a survey of list prices or asking prices. It's a record of trades that closed.

The reporters write up what they hear into a standardized report format, then AMS publishes it on a fixed schedule. Some reports come out daily. Others, like the CME cash dairy recap, come out weekly. The schedule depends on how often the underlying market moves enough to matter.

This is the same system grain elevators, packing plants, and commodity desks have used for decades to check where a market actually sits. It predates modern data dashboards by a long way. PlateCost just pulls the numbers out of the reports and puts them in front of people who run kitchens.

What's inside a report

A typical Market News report gives you a handful of core numbers for each item it covers:

• Low and high: the range of prices actually paid that reporting period
• Average or midpoint: a summary figure, sometimes weighted by volume
• Volume: how much product changed hands at those prices, when reporters can get that figure
• Tone or trend notes: short language on whether the market feels steady, higher, or lower compared to the last report

Different commodities get different treatment. The national shell egg report breaks prices out by carton size and region. The CME cash dairy recap covers butter, cheese, nonfat dry milk, and dry whey trades that clear through the CME spot market during the week. The Northeast fluid cream report covers cream specifically for that region, since cream doesn't trade on a single national exchange the way butter does.

None of these numbers are retail prices. They're wholesale, transaction-level figures from the point where product moves between processors, distributors, and large buyers. PlateCost's shell egg, dairy, and cream pages carry each report's own source name and retrieval date, because the specific numbers belong on those pages, not here.

Why buyers treat it as a benchmark

Market News works as a benchmark for three plain reasons. Reporters are independent of the buyers and sellers they talk to, so there's no incentive to shade a number toward one side of a trade. The methodology per commodity is published and doesn't change without notice. And the reports go back years, so you can check today's number against a real history instead of a single snapshot.

That combination, independent collection, a stable method, and a long record, is why contracts across the food industry still reference AMS numbers directly. A supply contract that says "price will follow the USDA cash dairy quote" is leaning on this same system.

Where to find the source reports

AMS publishes these reports as PDFs and structured data through its Market News site and the MARS API, which is what PlateCost reads from directly. Every data page on this site names the exact report it pulled from and when. If you want to check a number against the original document, that citation is your starting point. See how PlateCost sources its data for the retrieval process behind every page.