U.S. stock futures experienced a downturn on Monday morning, with the Dow futures dropping by approximately 1%. Several prominent companies, including Yatsen Holding, Delta Air Lines, and United Airlines, saw their shares fall in pre-market trading, influenced by various factors ranging from earnings reports to geopolitical events causing travel disruptions.

Yatsen Holding Ltd (NYSE:YSG) was among the steepest decliners in pre-market trading, following its fourth-quarter earnings report. The company reported adjusted earnings of 7 cents per share, a decrease from 14 cents per share in the previous year's corresponding period. Despite this, Yatsen Holding's sales observed a rise, reaching $197.258 million compared to $157.347 million year-over-year. Consequently, Yatsen's stock price declined by 10.1% to $4.00 in pre-market activities, signaling investor apprehension regarding its profitability.

The aviation sector also faced significant headwinds, with Delta Air Lines Inc (NYSE:DAL) and United Airlines Holdings Inc (NASDAQ:UAL) witnessing drops of 5.7% and 5.6%, respectively, in pre-market trading. Delta announced the suspension of its flight operations from New York’s JFK airport to Tel Aviv through March 8 and return flights through March 9. Similarly, United Airlines suspended its flights to Tel Aviv through March 6. These travel disruptions stem from escalating geopolitical tensions in the Middle East, leading to airspace closures and heightened concerns within the region.

Other companies also contributed to the overall negative sentiment in the pre-market session. Smithfield Foods Inc (NASDAQ:SFD) shares dipped by 10.1%, while Ultra Clean Holdings Inc (NASDAQ:UCTT) saw a 10% decrease following an upsized convertible senior notes offering. Honest Company Inc (NASDAQ:HNST) declined by 9.3% after reporting quarterly losses. Harrow Inc (NASDAQ:HROW) fell by 8.8% ahead of its upcoming fourth-quarter financial results. Neurogene Inc (NASDAQ:NGNE) experienced an 8.5% drop despite a recent FDA Breakthrough Therapy designation. The E W Scripps Co (NASDAQ:SSP) fell 8.4%, and Garrett Motion Inc (NASDAQ:GTX) dipped 7.7%. Rezolve AI PLC (NASDAQ:RZLV) also declined by 7.7%. Lastly, Carnival PLC (NYSE:CUK) and Norwegian Cruise Line Holdings Ltd (NYSE:NCLH) both experienced significant falls, with Carnival dropping 7.7% and Norwegian Cruise Line slipping 6.5% ahead of its quarterly earnings release. These widespread declines across various sectors indicate a cautious start to Monday's trading, reflecting a mix of company-specific news and broader market concerns.