In brief
The Nasdaq, Dow Jones and S&P 500 opened higher after Democrats gained both chambers of Congress. President Trump’s acceptance of the results lifted sentiment, but AI‑focused companies faced pressure amid a new legislative landscape. Oil futures fell as investors weighed the impact of the political shift on global supply chains.
The American stock market opened higher on Wednesday, the day after Democrats swept the 2026 midterm elections, taking control of both the House and Senate. The Nasdaq rose 1 percent, the Dow Jones Industrial Average climbed 1.8 percent, and the S&P 500 gained 1.1 percent as the exchange opened at 9:30 am ET (14:30 GMT).
Retail chains that depend on imports, notably Walmart and Target, saw gains of 1.3 percent and 3.3 percent, respectively, amid speculation over potential tariff changes. Health‑insurance giant UnitedHealthcare fell 2.9 percent, while CVS Health slid 12 percent; Cigna, meanwhile, posted a 1.6 percent uptick.
Investor sentiment was buoyed by a late‑night post from President Donald Trump, who announced his acceptance of the election results on social media. The comment eased political uncertainty and lifted confidence in the market, according to several analysts.
Companies involved in the artificial‑intelligence buildout experienced a mixed response. Both Oracle and Nvidia opened lower, whereas Alphabet—Google’s parent company—advanced 3.5 percent at the opening bell. The shift has prompted concerns that the new congressional majority could impose regulation on the sector.
There is no way to sugarcoat that Democrats taking control, especially over the Senate, will create some major hurdles for AI and tech legislation in the Beltway over the next two years. We estimate 10% of datacenters will not happen now,
—Dan Ives, managing partner of Yorkville Ives.
In states where AI penetration is high, Democrats performed strongly. In Ohio, Sherrod Brown captured the Senate seat; in Texas, James Talarico won a Senate seat, and the gubernatorial race flipped a seat when Gina Hinojosa emerged victorious. These results are seen as a signal of future policy scrutiny for the technology sector.
Oil markets reacted as well. The benchmark Brent crude futures dropped $3.20, or 3.09 percent, to $100.40 a barrel, while West Texas Intermediate fell $3.01, or 3.13 percent, to $93.08. The decline follows the recent session that saw oil prices hit four‑week lows, and investors are watching whether talks between Iran and the United States could ease geopolitical risk and support prices.
Overall, the combination of a political win for the Democrats, an endorsement from President Trump, and uncertainties over AI regulation shaped the market’s upbeat yet cautious tone as the day began.
