The Dow Jones Industrial Average dropped just 0.6% on July 20, 2026. It ended at 20,305 points. Big companies lost ground in the morning. Investors dumped large-cap stocks. Tech shares posted modest gains. AI-related stocks nudged the broader market positively. Oil prices surged after reports of heightened U.S.-Iran tensions. Energy companies fell significantly. Crude’s rise cut into the profits. The week had upcoming earnings due from major firms. Traders stood cautiously. They refrained from buying until they saw what the reports would bring.