The Rosario grain market experienced a mixed session on Thursday, September 3, 2026, with corn as the most traded crop and wheat giving up ground in line with Chicago. Soybeans, however, managed to decouple and closed with slight gains.
Chicago: Wheat Leads Declines
In the Chicago market, wheat closed with a 2.5% drop, pressured by the possibility of a peace deal in Ukraine that triggered profit-taking after recent strong gains. Corn ended in negative territory, dragged down by wheat's retreat, although lower yield expectations for the upcoming U.S. harvest limited losses. Soybeans, on the other hand, decoupled from the complex and closed slightly higher, supported by continued Chinese purchases of U.S. soybeans.
Rosario: Corn Firm and Offers for the New Campaign
In the local physical market, corn was the most traded crop. Spot prices held around US$ 190 per ton, while deferred and new-crop positions showed declines of up to US$ 5 per ton. The offer for delivery between September 15 and October 15 was US$ 198 per ton. For the new campaign, March was offered at US$ 206, April at US$ 205, and May at US$ 206.
Corn Offers in Rosario (September 3)
| Position | Price (US$/t) |
|---|---|
| Spot | 190 |
| Delivery 09/15 - 10/15 | 198 |
| March 2027 | 206 |
| April 2027 | 205 |
| May 2027 | 206 |
Soybeans Stable, with Offers for the New Crop
Soybeans remained stable, with prices aligned with the previous session. Offers appeared for the new crop: US$ 374 per ton for November delivery and US$ 357 per ton for May 2027 delivery, under EPA/EUDR conditions (European Union environmental regulations). In the SIO-Granos monitor, deals were observed at $ 560,000 per ton for nearby delivery and $ 565,000 for contractual delivery.
Wheat Down, Sunflower Stable
Wheat showed a bearish trend, influenced by Chicago. Spot was offered at US$ 225 per ton, while the full October position was offered at US$ 235, with a cut of US$ 10 between sessions. For the upcoming campaign, offers fell between US$ 10 and US$ 13 per ton depending on the position. Sunflower, meanwhile, was stable, with offers of US$ 500 per ton for immediate and contractual delivery, and US$ 450 for the December-March 2027 strip. Sorghum and barley registered no open purchase offers.
Reference Prices and Exchange Market
Regarding reference prices for September 3, soybeans quoted at $ 564,000 per ton in CAC, with Chicago at US$ 479.97 and A3 September at US$ 373.80. Wheat stood at $ 356,700 in CAC, Chicago at US$ 270.44 and A3 November at US$ 232.20. Corn reached $ 285,380 in CAC, Chicago at US$ 202.85 and A3 September at US$ 201.00.
In the exchange market, the Banco Nación operated the exchange rate at $ 1,499.00 / $ 1,508.00 (-0.20%), while the BCRA (Communication A3500) set the value at $ 1,508.2111 (-0.23%).
Dollar Futures
In the dollar futures and options market (A3 Mercados), a volume of 46 contracts was registered, with open interest of 28 lots. The DLR adjustments were: Sept6 1528.000; Oct6 1554.000; Nov6 1581.500; Dic6 1609.500; Ene7 1638.000; Feb7 1666.500; Mar7 1698.500; Abr7 1730.000; May7 1760.000; Jun7 1795.000.
Source: RuralNet