A trader quotes you the Urner Barry number. Your screen shows the USDA print. They don't match. Neither number is wrong; they are two different instruments measuring the market two different ways, and knowing exactly how they differ is part of the working vocabulary of the meat trade. (Urner Barry, the century-old price reporter, now operates under the Expana brand; the trade still says "the UB." Meat Read is not affiliated with either, and this article quotes none of their data.)
Two different kinds of number
USDA prices under mandatory reporting are reported transactions: packers above the size thresholds are required by law to submit the prices and volumes of actual sales, and USDA publishes the weighted averages. Within its scope, the print is close to a census of what large packers actually charged. Nobody's judgment sits between the trades and the number.
A price reporting agency works differently. Its reporters survey the market daily, talking to buyers and sellers, and publish an assessed price: their judgment of where the market cleared, informed by the trades and offers they hear about. Assessment is how most global commodity benchmarks work, and it has a real strength USDA cannot match: a reporter can quote a market on a day it barely traded, can cover products no government report carries, and can move the quote on market intelligence rather than waiting for transactions to accumulate. The cost is that the number is an informed judgment rather than an arithmetic of mandatory submissions.
Neither approach is superior across the board. The census is more objective; the assessment is more complete. A buyer should simply know which kind of number they are holding.
The basis gap: delivered versus FOB plant
The most common reason the two numbers "disagree" is that they price different points in the supply chain. USDA wholesale prints are FOB plant: at the packer's dock, freight not included. Assessed trade quotes are often on a delivered basis: the product landed at the buyer's dock, freight in the number. The exact delivery terms behind any given assessment are not a mystery; price reporting agencies publish specification guides, free to read on their sites, that set out each quotation's delivery basis, product spec, and timing. Freight is real money per pound, so a delivered quote sits above an FOB print for the identical product on the identical day, and the gap moves with fuel and truck availability. Comparing the two without adjusting for the basis is the same mistake as comparing a landed import cost to a domestic FOB print.
The granularity gap: tiers versus composites
The second reason is product definition. Government reports aggregate: one line for a product family where the commercial market may trade several distinct size or spec tiers at genuinely different prices. A private reporter can quote each tier separately, because their reporters hear the tier-level trades. When someone quotes you a tier and you check it against a composite, the difference is mix, not market. Chicken is where this bites hardest: the public chicken report is weekly, voluntary, and composite-level, which is exactly the void private assessment fills, and why poultry is the private reporters' strongest franchise. Beef and pork run the other way: mandatory reporting makes the public data a daily transaction census that no survey can out-depth.
Which number to use when
Contracts settle on whichever reference the contract names, and both references are widely written into formula deals; the only rule is to price your business against the same reference your contract uses. For reading the market, the practical split follows the data's strengths: public prints for beef and pork depth and history, private assessment where the public data is thin (poultry tiers, specialty products, delivered markets). Many desks read both, and the spread between them, once you adjust for the freight basis, is itself information about how the assessed market sits against the reported one.
Meat Read is built entirely on the public layer: the mandatory beef and pork prints and the voluntary poultry reports, with the history, seasonals, and daily read computed on top. That is a deliberate choice, the public data is auditable by anyone against the USDA source, and this site's job is to make that layer as usable as the subscription alternatives. Where a private quote serves your book better, the honest advice is the one above: know which kind of number you are holding, and never compare across the basis line without adjusting.