道琼斯指数8月20日（周四）开盘下跌350.97点，跌幅0.66%，报53112.08点； 标普500指数8月20日（周四）开盘下跌29.54点，跌幅0.38%，报7678.81点； 纳斯达克综合指数8月20日（周四）开盘下跌136.15点，跌幅0.52%，报26194.94点。

China's Economic Daily said recent warnings from Goldman, HSBC, BofA and JP Morgan that overlapping risks could trigger a new round of food inflation have spurred speculative flows: A-share agriculture/planting stocks jumped, several listed seed firms hit daily limit-ups and grain ETFs rallied. The paper said financial capital's speculation can amplify supply‑demand imbalances and manufacture shortages through expectation management. It urged maintaining ample food supply as the primary defense, noting a global trend toward stronger domestic grain self‑sufficiency. China continues its 'store grain in land and in technology' strategy, reporting consecutive large harvests, abundant inventories, basic grain self‑sufficiency and absolute staple‑food security.

据塔斯社：俄罗斯多家炼油厂即将完成维修。