About Corn Prices
Corn (maize) is the world's most produced grain, used for animal feed, ethanol, food products, and industrial applications. The U.S. is the dominant producer, accounting for roughly 32% of global output.
Corn prices are quoted in U.S. cents per bushel and traded on the Chicago Board of Trade (CBOT). Prices are driven by U.S. planting acreage and yield, ethanol mandates, Chinese import demand, weather during the growing season, and competition with soybeans for planted acres.
Approximately 35–40% of U.S. corn goes to ethanol production, 35–40% to animal feed, and the remainder to food, exports, and industrial use. This makes corn uniquely linked to both energy and food markets.
Corn Market Overview
Global Production
~1.2 billion tonnes
Top Producer
U.S. (~32%)
Top Exporter
U.S. (~30%)
Ethanol Share (U.S.)
~35-40% of crop
Feed Share (U.S.)
~35-40% of crop
U.S. Yield
~177 bu/acre (avg)
Corn is the largest U.S. crop by acreage and value. The ethanol mandate (RFS) guarantees a baseline demand of ~5.2 billion bushels annually. Brazil and Argentina are the second and third largest producers, with growing exports competing directly with U.S. corn in global markets.
Corn Historical Price Milestones
2005 — Pre-ethanol Era
$2.00/bu
2008 — Food Crisis
$7.65/bu
2012 — U.S. Drought
$8.49/bu
2020 — Pandemic Low
$3.00/bu
2022 — Ukraine War Spike
$8.24/bu
20-Year CAGR
~5.5%
Corn prices were structurally lifted by the ethanol boom (2005–2008) and have never returned to the sub-$2/bu levels of the early 2000s. The 2012 U.S. drought drove prices to a record $8.49/bu. The 2022 Ukraine war disrupted global grain trade and pushed corn back above $8/bu. Long-term demand growth from feed and fuel supports elevated prices.
Ways to Invest in Corn
Futures
CBOT ZC
5,000 bushels per contract
ETFs
CORN
Corn futures-based fund
Agri Stocks
DE, CTVA, ADM
Equipment, seed, and processors
Ethanol Stocks
GPRE, REX
Corn-to-ethanol producers
CBOT corn futures are among the most liquid agricultural contracts globally, with daily volumes exceeding 300,000 contracts. The CORN ETF provides direct price exposure. Deere & Company (DE) and Corteva (CTVA) offer indirect exposure through farm equipment and seed sales. ADM processes corn into food ingredients and ethanol.
Frequently Asked Questions
How does ethanol affect corn prices?
The U.S. Renewable Fuel Standard (RFS) mandates ethanol blending in gasoline, creating guaranteed demand for ~5.2 billion bushels of corn annually (~35% of the U.S. crop). This structural demand floor has kept corn prices elevated since the ethanol boom began in 2005. High gasoline prices boost ethanol margins and increase corn demand, while E15 (15% ethanol blend) expansion could further increase corn use.
What is the corn-soybean planting decision?
Each spring, U.S. farmers decide how many acres to plant with corn versus soybeans based on relative prices, input costs, and crop rotation needs. The corn-soybean price ratio is a key indicator — when corn is relatively expensive, farmers plant more corn (increasing future supply). USDA's March Prospective Plantings report is one of the most market-moving agricultural releases.
How does weather affect corn prices?
Corn is most vulnerable during pollination (July) when excessive heat and drought can dramatically reduce yields. A difference of 10 bushels/acre in average U.S. yields equals roughly 900 million bushels of production change. La Niña events tend to bring drought to the U.S. Corn Belt, while El Niño generally produces favorable growing conditions.
Is the Ukraine war still affecting corn?
Ukraine was the world's fourth-largest corn exporter before the war, shipping ~25 million tonnes annually. While the Black Sea Grain Initiative partially restored exports, Ukrainian production and infrastructure remain impaired. The war permanently shifted some import demand to South American and U.S. corn, supporting prices above pre-war levels.