The Dow Jones Industrial Average bounced back on Wednesday after two straight days of losses, boosted by a rally in tech stocks and renewed investor confidence. The biggest spotlight of the day was on Nvidia, which soared 2% to officially become the first publicly traded company to reach a $4 trillion market cap, driven by persistent optimism in the artificial intelligence space. Meanwhile, U.S. President Donald Trump’s tariff plans remained in focus as investors evaluated the broader implications of his latest announcements.
The Dow rose 153 points, or 0.4%, to break its short losing streak. The S&P 500 gained 0.5%, while the Nasdaq Composite climbed 0.8%, signaling broader market optimism despite ongoing global trade concerns. This rally came even as President Trump held firm on his planned tariffs ranging between 25% and 40% on countries like Japan and South Korea, set to begin August 1. In addition, Trump announced a 50% duty on copper imports and floated the idea of a massive 200% tariff on imported pharmaceuticals, though he indicated a grace period of a year to a year and a half for that measure to kick in.

Market analysts believe the rally suggests investors aren’t reacting in panic to these policy moves — at least not yet.

Nvidia's rise has been nothing short of historic. On Wednesday, its shares rose 2%, pushing its total market value above $4 trillion — the first company to ever reach that milestone.

Fueled by relentless demand for AI chips and enterprise computing systems, Nvidia continues to dominate headlines and investor interest. Other tech giants like Meta Platforms, Microsoft, and Alphabet also saw gains, reflecting renewed momentum in the AI and semiconductor sectors.

This surge in high-growth technology names has given markets a buffer against broader economic concerns — including interest rate decisions and international trade developments. President , confirming on Truth Social that no extensions would be granted for duties on nations like and . The , ranging from , are set to begin .

Still, markets largely shrugged off the developments.

"The market is just shrugging these tariff threats off and presuming there’s room for deals," said , investment strategist at Baird. "If the counter were true, we wouldn’t be anywhere near all-time highs."

U.S. copper prices surged, with Comex futures now trading at a record $2,600-per-ton premium over London Metal Exchange (LME) prices. The spike came after Trump's copper tariff announcement, with analysts warning of rising costs across sectors, from home appliances to infrastructure projects. UnitedHealth shares fell nearly 3% after a Wall Street Journal report revealed that the Department of Justice is questioning former employees over Medicare billing practices. The probe focuses on the company’s method of documenting lucrative diagnoses and the use of in-home visits to boost reimbursement rates.

• jumped on news it’s exploring a amid interest from firms like and
• surged after agreed to acquire the company in a

T-Mobile stock dropped 1.5% after KeyBanc Capital Markets downgraded the telecom giant to “underweight.” Analysts cited slowing free cash flow and increasing capital spending, along with a valuation premium versus peers.

Are investors ignoring Trump’s escalating trade tariffs?

It appears that markets are brushing off the immediate impact of President Trump’s tariff threats — at least for now. On Tuesday, Trump confirmed via Truth Social that no changes or extensions would be made to his tariff plan. But he also noted some flexibility, leaving room for potential negotiations.

Ross Mayfield, investment strategist at Baird, told CNBC:

“The market is just shrugging these tariff

Q1: Why did the Dow Jones go up after Nvidia’s $4 trillion milestone?
Because Nvidia’s market cap surge boosted tech stocks and investor confidence.

Q2: What tariffs did Trump announce recently?
Trump announced tariffs up to 200% on pharma and 50% on copper imports.