Investing.com - U.S. corn futures held near a three-week high struck in the previous session on Tuesday, as investors looked ahead to the U.S. Department of Agriculture's closely-watched monthly crop supply and demand report due later in the session.
On the Chicago Mercantile Exchange, US corn for March delivery dipped 0.28 cents, or 0.07%, to trade at $3.9013 a bushel during U.S. morning hours.
A day earlier, US corn for March delivery hit $3.9160, the most since January 22, before ending at $3.9120, up 5.4 cents, or 1.43%.
Corn prices are up almost 5% over the past week, as investors closed out bets on lower prices.
Despite recent gains, futures remained vulnerable amid concerns over reduced demand for corn-based ethanol and ample supplies in the U.S.
Meanwhile, US soybeans for March delivery shed 1.32 cents, or 0.14%, to trade at $9.7688 a bushel. On Monday, US soybeans for March delivery picked up 5.0 cents, or 0.51%, to settle at $9.7840 a bushel.
Prices of the oilseed have been weighed in recent weeks by concerns over weakening demand from China and amid optimism over crop prospects in Brazil and Argentina.
Elsewhere on the Chicago Board of Trade, US wheat for March delivery declined 3.73 cents, or 0.7%, to trade at $5.2588 a bushel.
US wheat for March delivery tacked on 2.6 cents, or 0.52%, to close at $5.2960 a bushel.
Wheat has been under heavy selling pressure in recent weeks amid ample global supplies and indications of reduced demand for U.S. wheat.
Corn is the biggest U.S. crop, followed by soybeans, government figures show. Wheat was fourth, behind hay.
Investing.com offers an extensive set of professional tools for the financial markets.
Read more News on Investing.com and download the new Investing.com apps for Android and iOS!