| Date | Market | Commodity | Class | Weight | Avg $/cwt | Avg Wt | Head |
|---|
This dashboard pulls structured price data directly from the USDA Agricultural Marketing Service (AMS) MARS API. Understanding how that data is collected, structured, and aggregated will help you interpret the numbers accurately.
All market data originates from the USDA AMS Market News Division and is accessed via the MARS API (marsapi.ams.usda.gov). Data is fetched automatically each weekday evening and stored in Supabase for fast dashboard access.
Arkansas auction markets tracked:
These markets represent significant regional trading hubs across Arkansas and consistently produce enough volume to serve as reliable price benchmarks.
The MARS API is designed for price discovery — helping buyers and sellers understand what cattle of a given type and weight sold for. It organizes data by commodity (Feeder, Slaughter, Replacement), class (Steers, Heifers, Bulls, Cows), weight bracket (100-lb buckets), and frame grade (primarily M&L1).
Key limitation: The API focuses on M&L1 frame cattle. Lower frame grades are present in the auction PDF but are not always included as separate API rows. This means API head counts will generally be lower than the PDF's "Total Receipts" figure.
1. Frame grade filtering — The API primarily returns M&L1 rows. M&L 1-2 cattle are not consistently represented in the machine-readable rows.
2. Unsold & passed cattle — The PDF "Total Receipts" includes cattle that were passed or withdrawn. The API records only sold lots with a transaction price.
3. Commodity filter — The Market Compare tab filters to one commodity at a time, so head counts reflect only the selected category.
All price figures are weighted average prices — each lot's price is weighted by its head count before averaging. Prices are expressed as $/cwt for Feeder and Slaughter Cattle, and $/head for Replacement Cattle. Weekly averages group all auction dates within the same Monday–Sunday week.
No online auction data is currently tracked for Arkansas markets. Only physical ring auction reports are shown on this dashboard.