Crop prices have experienced their largest monthly increase since 2012, primarily due to escalating tensions in the Black Sea impacting grain exports and adverse weather conditions affecting key growing regions. The Bloomberg Grains Total Return Index has reached a two-year high, reflecting broad gains in corn and wheat prices, and is up 9.3% this month and 20% year-to-date.
Wheat has been a significant driver, with futures settling 3.1% higher at 784 cents per bushel on Friday, after hitting 790.25 cents, its highest since February 2023. Wheat prices jumped 12.1% this week, marking its biggest weekly gain since March 2022, and are up over 54.5% year-to-date. This surge is largely attributed to ongoing disruptions in Black Sea exports, as Russia and Ukraine collectively account for more than a quarter of global wheat exports. William Osnato, Barchart director of commodity data research, noted that damage to Russian grain-export infrastructure has significantly reduced expectations for near-term Russian wheat shipments.
Corn prices have also rallied, with futures settling 0.6% higher at 536.5 cents per bushel on Friday, after reaching 541.25 cents, the highest since July 2023. Corn gained 5.5% for the week and is up 15.6% in August, on track for its best month since April 2021, and up 21.8% year-to-date. This increase is mainly due to tighter U.S. supply expectations, strong demand, and constrained Ukrainian exports. The U.S. Department of Agriculture (USDA) lowered its corn yield estimates more than anticipated in its August WASDE report, cutting the forecast by 2.3 bushels per acre to 180.7. Jim McCormick, co-founder of AgMarket.Net, stated that concerns about U.S. supply are becoming critical as global reserves were already tight.
Weather conditions have further exacerbated the situation. Extreme heat waves and drought in Europe significantly impacted corn production, while drought also reduced hard red winter wheat output in Texas, Oklahoma, and Kansas. Additionally, strong export demand from Europe, reflected in the USDA's increase of export projections by 75 million bushels to 3.3 billion, is adding pressure to already constrained supplies. This combination of geopolitical conflict, unfavorable weather, and robust demand has created a scenario where a move to multi-year highs can attract further buying from momentum and systematic traders, according to Osnato.
