
Grain markets are facing a period of downward pressure. Corn, wheat, and soybeans all struggle to maintain their recent highs.
Market advisor John Heinberg with Total Farm Marketing notes that the “war premium” which initially bolstered prices following geopolitical conflicts is evaporating. It’s leaving the market to contend with hefty domestic stocks and rising global competition.
The corn market has seen a sharp reversal over the last two weeks, losing over $0.22 in value. Heinberg attributes the decline to a massive surplus in domestic grain stocks. Compared to last year, stocks are up 900 million bushels. Additionally, the start of a record-breaking harvest in Argentina and finishing phases for the Brazilian crop are creating global competition for U.S. exports.
“We’re seeing prices now taking out all that war premium… farmer selling still continues to be a wet blanket over this market,” Heinberg says.
Wheat prices have also “fallen apart” as they decouple from the crude oil market. Reports indicate that U.S. wheat supplies are at their highest levels since the 2018-19 marketing year, Heinberg says. This is while global stockpiles reach levels not seen since 2020.
Soybeans, which had been supported by the demand for biodiesel and soybean oil, are now showing signs of vulnerability. Beyond the influence of crude oil, traders are increasingly anxious about geopolitical stability and trade negotiations.
“What’s going to happen with China and President Trump… if that meeting gets canceled one more time or moved back again, that would be something that would be pretty difficult for the soybean market to handle,” Heinberg warns.
The industry is now looking toward the upcoming USDA report in May. Heinberg expects this report to be a pivotal moment for the 2026-27 marketing year. It will provide the first official estimates for the new crop season while planting gets underway across the country.

