Major stock market indexes in the United States opened higher on Wednesday amid The Boeing Company, Philip Morris International Inc., AT&T Inc., and GE Vernova Inc.'s upbeat quarterly results. Additionally, President Donald Trump denied he had plans to fire Federal Reserve Chair Jerome Powell as it was rumored.

The Dow Jones Industrial Average grew by 1.89% or 740 points as Boeing surged by 6.98% at 9:32 am ET. The Nasdaq 100 rose by 3.15% or 577 points, with Marvell Technology Inc. jumping by 8.83%. The S&P garnered 2.52% or 133 points as Amphenol Corp. soared by 15.48% at 9:31 am ET.

The euro lost 0.19% to the dollar at 9:29 am ET to sell for $1.13991.