Traders amass big bet on falling grain prices after bumper harvests

Susannah Savage and George Steer in London Commodity traders have increased their bets on a slump in grain prices as bumper harvests lead to a global supply glut of corn, wheat and soyabeans. Hedge funds and other speculators have accumulated a net short position of 546,000 futures contracts across the three crops, the largest negative bet in nearly 20 years, according to the latest figures from the US Commodity Futures Trading Commission. The size of the wagers has grown as prices have...