A3 Mercados: derivatives exchange in Rosario and Buenos Aires
A3 Mercados is the Argentine market operator formed through the combination of Matba Rofex and MAE.
AGR-006 · Derivatives exchange · Rosario and Buenos Aires, Argentina · USD; ARS in settlement
Argentine grain and soybean derivatives market
A3 Mercados is the Argentine market operator formed through the combination of Matba Rofex and MAE. Researchers using older agricultural records will still encounter MATBA, ROFEX and Matba Rofex. This directory keeps one entry for the current organisation to avoid counting the same infrastructure several times. Rosario and Buenos Aires are important centres, while the physical delivery point depends on the contract. Agricultural activity focuses on soybeans, corn and wheat, central commodities in Argentina’s export supply chain.
For producers, the practical value lies in comparing forward prices and possible selling conditions. Exporters and processors can relate futures levels to local procurement, freight costs and available supply. A3 volume expressed in tonnes is a contract-equivalent measure, not the weight of grain loaded onto ships. An economic exposure can be bought and sold repeatedly. This distinction is essential when comparing the market with a fresh-produce wholesale centre, where reported tonnage generally refers to physical throughput rather than repeated derivative transactions.
Before buying or selling, choose an eligible intermediary, product, expiry and settlement variant. Commercial counterparties should agree whether the price is denominated in dollars, how payment will be converted into pesos and which exchange rate and date apply. Grain type, quality, delivery location and shipment schedule also need to be explicit. A symbol containing a location can represent different terms from a similarly named contract for another port or storage point. Do not assume that a settlement rule for one product applies to every instrument available through A3.
The public Visor de precios is a starting point for prices and individual expiries, but requires an interactive web page. Distinguish the last trade from bids, offers and ajuste, the settlement price. If updates appear stale, verify the trading date before treating a displayed value as a current offer. A business buying physical grain must separately arrange collection, quality documents, transport and payment. Before carrying a position into expiry, confirm delivery and funding obligations with the broker. The quotation becomes most useful when paired with a clearly described cash-market differential and a real counterparty offer. For recurring procurement, retain the original currency and unit alongside any converted price so that a later review can separate commodity movements from currency and logistics effects.
What is priced: Grains, oilseeds and pulses
Where to find the prices
Products and quotations
Soybeans; Corn; Wheat
Key figures
- Agricultural derivatives volume: 89,600,000 equivalent tonnes (2025). Notional volume, not physical delivery.
- Volume change: 35 % (2025/2024). Year-on-year increase.
Sources
- A3 — activity scale
- Moody’s Local — 10 April 2026
- A3 — market and access
- A3 — price screen
All agricultural exchanges, markets and price sources
