Wheat and corn prices fall in Chicago on Tuesday, while soybeans remain stable

Global grain markets mostly moved lower on August 18. September CBOT SRW wheat futures fell 1.52% to $244.16/t, while September corn declined 0.38% to $183.08/t. November soybean futures were virtually unchanged, gaining 0.06% to $447.07/t.

Corn remained under pressure despite deteriorating US crop conditions. The share of corn rated good to excellent fell by 1 percentage point over the week to 60%, which is 11 points below last year. Initial ProFarmer Crop Tour results also showed weaker yield potential, with South Dakota down 14.4% year on year and Ohio almost 3% lower.

Soybeans finished nearly unchanged, supported by fresh Chinese demand. USDA reported a private sale of 136 thsd tons of US soybeans to China for delivery in 2026/27. Meanwhile, US soybean crop conditions deteriorated, with the share rated good to excellent falling to 61%, while initial ProFarmer Crop Tour results in South Dakota and Ohio were below last year’s levels.

In Europe, September MATIF wheat declined 0.8% to €223.25/t, while November corn rose to €255.75/t. EU soft wheat exports from the start of 2026/27 through August 16 reached just 1.48 mln tons, down 49% from the same period last season.

In the oilseed market, Canadian canola posted a sharper decline, with November ICE futures falling 2.6% to CAD 805.9/t. Meanwhile, sunflower oil on an FOB Rotterdam basis was assessed at $1,500/t on August 18, maintaining a substantial price premium over major grains and oilseeds.

Tags: corn, EU, prices, soybean, wheat, USA, futures, global grain market