New Delhi, July 22 -- Wall Street's major stock indexes traded on a mixed note on Wednesday as investors remained cautious ahead of earnings from major technology companies while monitoring a fresh surge in crude oil prices amid escalating tensions between the United States and Iran in the Middle East.

At 9:58 a.m. ET, the Dow Jones Industrial Average rose 238.09 points, or 0.46%, to 52,462.73, the S&P 500 gained 2.28 points, or 0.03%, to 7,511.48 and the Nasdaq Composite lost 65.06 points, or 0.25%, to 25,772.14.

At the open, the Dow Jones Industrial Average rose 62.5 points, or 0.12%, to 52287.14. The S&P 500 fell 11.7 points, or 0.16%, to 7497.47​, while the Nasdaq Composite dropped 143.5 points, or 0.56%, to 25693.719.

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