Soy

What it is

Soy (Glycine max) is an annual legume native to East Asia, now the world's most-traded oilseed and the dominant protein source in global animal feed. The bean splits into two commercially critical fractions: soybean meal, which supplies roughly 70% of the world's livestock and aquaculture protein, and soybean oil, used for cooking and increasingly as a biofuel feedstock. Brazil, the United States, and Argentina together produce about 80% of the global crop. The central mechanism is the "crush": soybeans enter a processing plant, exit as meal and oil, and the margin between raw-bean cost and combined-product value drives investment and trade globally. Four trading companies, the so-called ABCD group (Archer-Daniels-Midland, Bunge, Cargill, and Louis Dreyfus), control a large share of the physical soybean trade and processing capacity across all three major producing countries.

History

Soy was domesticated in northeastern China around 1100 BCE and remained largely an Asian subsistence crop for centuries. US commercial cultivation took off after World War II, driven by demand for cheap livestock protein as meat consumption rose. Brazil's rise came later and faster: starting in the 1970s, the Brazilian Agricultural Research Corporation (Embrapa) adapted soy varieties to the tropical cerrado savanna, converting vast areas of inland Brazil previously considered unsuitable for temperate crops. By the early 2010s, Brazil had overtaken the US as the world's largest producer. Between 2010 and 2024, global soy production grew 50%, driven almost entirely by area expansion in South America rather than yield gains. China's WTO accession in 2001 and the subsequent shift of its population toward meat-heavy diets supercharged import demand through the 2000s and 2010s.

Current state

Global soy production for marketing year 2025/26 is forecast by the USDA at approximately 428 million metric tons, up from 421 million in 2024/25. Brazil leads with a projected 2026/27 crop of 186 million metric tons. The US 2026/27 season-average price is forecast at US$11.40 per bushel, up US$1.00 from 2025/26; US crush is projected at 2.75 billion bushels, lifted by strong biofuel demand for soybean oil. Argentina, at 50 million metric tons for 2025/26, dominates global meal and oil exports because most of its beans are crushed domestically before shipment. China imports roughly 100 million metric tons of soy per year, accounting for about 60% of global seaborne trade. India's soy crop, concentrated in Madhya Pradesh and Maharashtra, faced acute pressure in 2026: a 46% monsoon rainfall deficit through late June (see India's 2026 kharif drought) put kharif planting at serious risk. Roughly 94% of US-grown soy and a large majority of Brazilian and Argentine soy are genetically modified varieties.

Relationships

China is the axis around which the global soy market turns: its import volumes set the effective price floor. The US-China tariff confrontation that began in 2018 (see US–China Trade) is the single biggest structural shift in soy trade of the past decade, pushing Chinese buyers persistently toward Brazilian supplies and away from US origins. Brazil's trade posture toward the US (see Lula threatens reciprocity as Trump's 25% tariff collides with Brazil's election) adds a second layer of price and policy risk for buyers and exporters. The FAO's food-price monitoring (see Wheat climbs a fourth straight month as cereals defy a stable headline index) treats soy-derived vegetable oil as one of its key sub-indices, and price spikes ripple into household cooking costs across Africa and South and Southeast Asia. Soy's role in feed also links it to adjacent grain crops: a monsoon failure that stresses kharif soy in India simultaneously stresses rice and, through the crop-calendar, rabi wheat (see India procures 34 million tonnes of wheat, lifts four-year export ban).

What to watch

The 2026/27 US soybean crop will be watched for yield outcomes given expanded planted area. In Brazil, enforcement of Cerrado deforestation restrictions will determine whether area expansion can continue at historical rates or faces a structural ceiling. The trajectory of US-China tariffs remains the most consequential price lever: any new round of escalation or easing can move benchmark prices by double digits within weeks. Biofuel mandates in the US, the European Union, and Brazil are making soy oil demand progressively less discretionary, reshaping the crush margin in ways that feed-demand alone cannot reverse. India's monsoon recovery in July and August 2026 will determine whether the country imports soy oil at elevated prices or covers domestic needs from its own kharif harvest.