Tech shares slip as Dow rises after Trump targets Canada; Micron and Nvidia fall

U.S. stocks opened the session with a split pattern, as the Dow Jones Industrial Average rose while broader market indexes pointed lower, according to market coverage published Monday. The divergence reflected sector-specific selling, with technology stocks particularly pressured even as the blue-chip index found support.

The biggest visible driver cited in the market roundup was President Donald Trump’s renewed criticism of Canada, which traders appeared to treat as a headline risk for cross-border trade and supply chains. While the coverage did not spell out specific policy actions in the market post, the political rhetoric was linked to investor caution across markets.

Within technology, memory and semiconductor-related stocks were a focal point. Micron Technology, a supplier of memory chips used in data centers and personal electronics, was reported down in the live market coverage. Nvidia, a leading provider of graphics processing units and AI-focused data center hardware, was also reported lower during the session.

Nvidia’s drop came in the context of broader tech weakness rather than any single company-specific disclosure in the market post. The coverage framed the move as part of a sector-wide reaction, with investors turning more cautious as the day’s political headlines circulated.

The day’s price action highlights how quickly sentiment can shift when markets interpret macro headlines as potential constraints on trade and manufacturing flows. Chipmakers and their suppliers can be sensitive to expectations around tariffs, export controls, and industrial policy, even when the companies themselves have not issued an immediate, related statement.

For Nvidia specifically, the company’s business spans gaming GPUs, data center accelerators, and other computing platforms that are tightly connected to global demand for AI infrastructure. When the market hits the sector together, it often reflects not just concerns about end demand, but also fears that policy risk could disrupt procurement, pricing expectations, or investment timelines across the semiconductor ecosystem.

Still, the market post did not provide detailed, company-level explanations for the decline in Micron and Nvidia. It also did not quantify how much of the move was attributable to the Canada-related comments versus other intraday factors such as rate expectations, earnings positioning, or broader sector rotation.

Investors may watch for any follow-up on the Canada-related rhetoric, including whether it translates into concrete trade steps. They may also look for fresh company communications from chip and AI hardware vendors, such as updated demand commentary, supply-chain updates, or guidance-related remarks at upcoming investor events.