Despite a weakened United States dollar on July 17, activity in the grains at the Chicago Board of Trade was choppy, according to broker Ryan Ettner of Allendale Inc. in McHenry, Ill. Added to that, Ettner pointed out the speculative funds resumed accumulating very large short positions in corn and soybeans.

CBOT Weekly: Market choppy as funds continue to build shorts

U.S. grains: Oversold corn and soy bounce back after lows
Chicago soybean and corn futures firmed on Tuesday after hitting multi-year lows on bargain buying and forecasts for lower harvests in some parts of the world, according to analysts.

U.S. grains: Soybeans near 4-year low; corn, wheat sag on supply prospects
U.S. soybean futures fell to their lowest level in nearly four years on Monday and corn and wheat futures followed the weaker trend as rains bolstered Midwest production prospects and traders worried about demand for big crops, analysts said.

U.S. grains: Corn futures turn higher on surprise old-crop stocks forecast
Chicago Board of Trade corn futures rebounded off of multi-year lows on Friday, and soybean futures briefly turned higher, as a government report forecast tighter stocks than traders had expected.

U.S. grains: Wheat, corn and soybeans rebound ahead of data
Chicago wheat, corn and soybean futures regained ground on Thursday after Wednesday's dramatic losses as investors covered short positions ahead of the U.S. Department of Agriculture's supply and demand report set to be released on Friday.

U.S. grains: Soy futures fall to 2020 low on strong US crop prospects
Chicago Board of Trade soybean futures fell to a 2020 low on Wednesday, while corn hovered near a four-year low as favorable U.S. crop conditions kept a lid on prices.

CBOT weekly: Good weather leads to new lows in Chicago soybeans and corn
Soybean and corn futures at the Chicago Board of Trade fell to fresh contract lows in early July, as relatively favourable growing conditions and bearish technical signals weighed on values.

U.S. grains: Wheat, corn recover after slide; soy hits 2020 low
Chicago wheat and corn futures ticked higher on Tuesday after sharp declines on Monday, while most-active soybean futures closed at their lowest point in nearly four years, as expectations of ample supplies from northern hemisphere harvests hung over the market.

U.S. grains: Soybean, grain futures drop on expectation of positive crop report
Chicago Board of Trade soybeans and corn futures on Monday dropped to around the lowest prices in four years, as traders expected a positive picture of U.S. crop progress from the U.S. Department of Agriculture (USDA) in a report due later in the day.

U.S. grains: US wheat futures up on strengthening demand
Chicago Board of Trade wheat futures spiked on Friday amid an uptick in demand for U.S. wheat due to a weaker dollar and the availability of desirable new-crop wheat, traders said.