U.S. Grain Futures Slide as Early‑August Weakness Follows July Rallies

Volatile losses reflect big soybean sales to China, wetter Midwest forecasts as well as heavy speculative fund positions ahead of the Aug. 12 WASDE.

Overview

U.S. corn, soy and wheat futures opened August weaker after weekly losses and technically bearish closes that showed July’s summer rallies had lost momentum.
Markets reacted to confirmed large soybean sales to China, including a USDA‑reported 488,000‑metric‑ton sale, which reshaped near‑term demand expectations for U.S. supplies.
Wetter short‑term forecasts for parts of the U.S. Corn Belt and slipping crop condition ratings (corn about 61% good/excellent and soybeans about 63% good/excellent) pressured prices by lowering near‑term yield risk premiums.
Large managed‑money positions amplified swings as CFTC data showed funds added substantial net longs in corn and soybeans in the week ending July 28, producing sharp intraday reversals on Monday and Tuesday.
Trade flows and data will steer the next move with traders watching the Aug. 12 WASDE, ProFarmer tour results, weekly export inspections and monthly crush/ethanol and Census export reports for fresh supply‑demand signals.