U.S. stocks ended mixed on Monday, as investors assessed the potential impact of U.S. President Donald Trump's tariff policies while shifting their attention to Nvidia's upcoming earnings report.

The Dow Jones Industrial Average edged up by 33.19 points, or 0.08 percent, to 43,461.21. In contrast, the S&P 500 declined by 29.88 points, or 0.50 percent, to 5,983.25, while the Nasdaq Composite fell by 237.08 points, or 1.21 percent, to 19,286.92.

Among the 11 primary sectors in the S&P 500, six ended lower, with technology and consumer discretionary stocks leading the losses, falling by 1.43 percent and 0.87 percent, respectively. Meanwhile, health and financials were the top gainers, rising by 0.75 percent and 0.45 percent, respectively.

During a press conference on Monday, Trump reaffirmed that tariffs on Mexico and Canada would proceed as scheduled following a one-month delay, which is set to expire next week.

Trump, announcing the new agreements on Truth Social on Feb. 3, said the tariffs on Canadian goods would be paused for 30 days while the duties on Mexican imports would be postponed for one month.

Meanwhile, AI chipmaker Nvidia, set to report quarterly results on Wednesday, recently lost 3.09 percent after a decline of more than 4 percent on last Friday, as its shares bounced between gains and losses throughout the day.

"If Nvidia comes out on Wednesday with an amazing earnings report," said Larry Tentarelli, chief technical strategist for Blue Chip Daily Trend Report, "then that could turn these AI stocks up. But right now, the market has been rotating out of AI and tech."

Apple gained 0.63 percent following an announcement that it will invest over 500 billion dollars in the United States over the next four years. Among other major tech stocks, both Meta Platforms and Broadcom dropped by more than 2 percent, while Microsoft, Amazon, and Tesla each lost about 1 percent, and Alphabet managed to post gains.

Although Monday's earnings calendar was relatively light, it is expected to pick up in the coming days with quarterly reports from Home Depot, Lowe's, Salesforce, and Dell Technologies, with Dell shares falling by more than 2 percent this afternoon.

The yield on the 10-year U.S. Treasury, which is sensitive to interest rate expectations, was trading at 4.4 percent as of 4:30 p.m., slightly down from 4.42 percent at the close of last week and near its lowest level for the month.