Agricultural Commodities: Trading Wheat, Corn, and Soybeans

Wheat, corn (maize), and soybeans form the foundation of global agriculture, collectively accounting for the majority of international grain and oilseed trade. These commodities feed both humans and livestock, serve as industrial inputs (ethanol, biodiesel, plastics), and are critical to food security in virtually every country. Annual global trade in these three crops exceeds 600 million tonnes.

Prices are driven by weather events in major growing regions, government policies (export bans, tariffs, subsidies), biofuel mandates, currency movements, and global economic conditions. The US, Brazil, and Argentina are the dominant exporters, while China, the EU, Japan, and Middle Eastern/North African countries are major importers.

Global wheat production exceeds 780 million tonnes annually, with Russia, the EU, China, India, and the US as the largest producers. Russia has emerged as the world's largest wheat exporter, followed by the EU, Canada, Australia, and the US. Wheat is classified by type (hard red winter, soft red winter, hard red spring, durum, white) and graded by protein content, test weight, and moisture.

Wheat prices are benchmarked on the Chicago Board of Trade (CBOT), with the Matif Paris exchange serving as the European benchmark. Physical wheat trades at a premium or discount to these futures based on quality, origin, and delivery location. FOB prices at key export terminals (Gulf of Mexico, Black Sea, Australia) are the standard quotation basis.

Corn is the world's most produced grain at over 1.2 billion tonnes annually, with the US, China, Brazil, and Argentina as the largest producers. The US dominates corn exports, though Brazil has rapidly closed the gap. Approximately 40% of US corn goes to ethanol production, creating a link between corn prices and energy policy.

Corn is graded by the USDA system (US No. 1 through No. 5) based on test weight, moisture, broken kernels, and foreign material. International trade commonly specifies US No. 2 Yellow Corn as the standard grade. Pricing references CBOT corn futures, with physical trades quoted as a basis (premium/discount) to the nearby futures contract.

Global soybean production exceeds 370 million tonnes, with Brazil, the US, and Argentina accounting for over 80% of production. Soybeans are crushed to produce soybean meal (used in animal feed — roughly 65% of the bean) and soybean oil (cooking oil and biodiesel — roughly 20%). China imports approximately 100 million tonnes of soybeans annually, making it by far the dominant buyer.

Soybean prices are benchmarked on CBOT, with the soybean crush spread (bean price vs. meal + oil prices) being a key profitability indicator for processors. Physical soybeans trade on a basis to CBOT futures, with Brazilian premiums quoted FOB Paranagua and US premiums quoted FOB Gulf. Non-GMO soybeans command a premium in certain markets, particularly Japan and the EU.