Major U.S. equities indexes tumbled Monday amid concerns about U.S. trade policy as President Trump said tariffs against Mexico and Canada would take effect Tuesday as planned.

The S&P 500 fell 1.8%, marking the steepest daily drop for the benchmark index so far this year. The Dow slid 1.5%, while the Nasdaq plummeted 2.6%, dragged down by underperformance in the 𝄹technology sector, particularly among AI stock.

Shares of server maker Super Micro Computer (SMCI) plunged 13% Monday, leading losses on the S&P 500. Although the volatile stock posted gains in the middle of last week after Supermicro 澳洲幸运5官方开奖结果体彩网:met a deadline for filing its delayed annual report, Mizuho analysts warned of increa𒁃sing competition and declining market share in the🉐 AI server market.

Meanwhile, Nvidia (NVDA) shares sank 8.7% to lead losses on the Dow and Nasdaq, 澳洲幸运5官方开奖结果体彩网:extending losses last week as concerns intensified about the sustainabili🐓ty of AI spending and the possible impac🌠t of tariffs and chip export curbs.

APA Corp. (APA) shares lost 8.7%, broadening a downturn for the stock that began last week after the oil and gas exploration firm missed fourth-quarter profit expectations. Although APA enjoyed a production boost in the Permian Basin following last year's acquisition of competitor Callon Petroleum, declining commodity prices and increasing expenses weighed on the company's performance.

The top performance among S&P 500 constituents Monday came from shares of insurance company Erie Indemnity (ERIE), which advanced 5.1%. Monday's push higher added to gains posted last week after the insurer reported better-than-expected earnings for the fourth quarter, boosted by increaseܫd management fee revenue from policy issuance and rene🌄wal services.

Shares of 🌼澳洲幸运5官方开奖结果体彩网:real estate investment trust (REIT) Weyerhaeuser (WY), which is among the world's largest private owners of timberlands, jumped 4.3% after President Trump signed an executive order over t🐓he weekend aimed at promoting domestic timber and lumber production.

Hershey (HSY) shares added 3.4% on Monday, clawing back losses posted last week as the possibility of cuts to the Supplemental Nutri🦩tion Assistance Program (SNAP) weighed on consumer staples stocks.