July 22 (Reuters) - The S&P 500 and Dow opened lower on Wednesday as an escalation in tensions between United States and China offset optimism about another round of fiscal stimulus for the virus-stricken economy.
The Dow Jones Industrial Average fell 15.84 points, or 0.06%, at the open to 26,824.56. The S&P 500 fell 1.98 points, or 0.06%, at 3,255.34 after market open. The Nasdaq Composite gained 7.22 points, or 0.07%, to 10,687.58 at the opening bell. (Reporting by Medha Singh in Bengaluru; Editing by Shounak Dasgupta)