Tesla was particularly battered as it joined Apple (-3%) and Nvidia (-3%), as American multinational companies with the highest proportion of sales in China.

The market sold off this morning after President Donald Trump announced sweeping tariffs over the weekend to take effect Tuesday. The broader benchmark S&P 500 fell over 1.7%, as of 9:55 a.m. ET. Meanwhile,

The chip maker's shares are falling with the wider market after President Donald Trump says he intends to impose levies on imported semiconductors.

Silicon Valley giants Apple (-3%) and Nvidia (-5%), two of the American multinational companies with the highest proportion of sales in China, faltered, while semiconductor chip players including Broadcom (-3%) and Intel (-3%) suffered as the industry heavily reliant on the global supply chain digested the trade conflict.

Chinese startup DeepSeek said it trained its AI model for less than $6 million, compared to the billions of dollars U.S. tech companies are spending. Nvidia stock plummeted in one trading session on concern that certain customers may opt for cheaper AI chips.

Nvidia's stock value has declined sharply in recent days following the emergence of Chinese AI startup DeepSeek, resulting in a substantial decrease in its market capitalization. However, semiconductor industry insiders suggest that DeepSeek could accelerate the adoption of AI technologies,

One of the biggest stories from last week underscores just how critical AI has become—not just for Silicon Valley, but for America’s national security.