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Continuing questions about the impact of Trump administration tariffs caused U.S. equities to be higher but little changed at midday.

Nvidia made history Wednesday as the first publicly traded company to hit a $4 trillion market cap. Visit https://www.bizjournals.com/sanfrancisco/event/171596/2025/business-of-sports for tickets.

The FTSE 100 is being led higher by miners, and the materials sector is higher by more than 3% on Thursday. Healthcare stocks are also strong across Europe. This may sound counterintuitive, President Trump has just announced tariffs on copper,

Nvidia has made history as the first publicly traded company to achieve a $4 trillion valuation, highlighting the impact of artificial intelligence.

There are increasing signs that the White House's moves to place higher tariffs on imports won’t translate into large price increases for consumers, San Francisco Fed President Mary Daly said on Thursday.

Tax incentives contained in the sweeping tax and budget bill Trump signed on July 4 could provide a fresh boost to AI chipmakers.

CNBC's Jim Cramer on Wednesday reflected on the significance of one of his long-time favorite stocks, Nvidia, just after the artificial intelligence powerhouse became the first company to amass $4 trillion in market cap during trading.

This sharp rally has pushed Nvidia to reclaim the title of the world's most valuable stock, with a market capitalisation of $327 trillion, beating Microsoft's $311 trillion. Apple remains at a distant third with $270 trillion in m-cap.

Nvidia's earnings over the past 12 months were worth about 0.07% of global GDP, according to Deutsche Bank, while the company employed around 0.0004% of the global population. Now that Nvidia has passed the $4 trillion market-capitalization milestone,