Shares of Entegris (NASDAQ: ENTG), a leading supplier of advanced materials and process solutions for the semiconductor industry, plummeted 7.80% in pre-market trading on Wednesday. The sharp decline follows the company's disappointing first-quarter results and weaker-than-expected outlook for the second quarter, with new tariffs adding uncertainty to the business landscape.

Entegris reported first-quarter adjusted earnings per share of $0.67, falling short of the analyst consensus estimate of $0.68. This represents a 1.47% decrease compared to the same period last year. Revenue for the quarter came in at $773.20 million, missing the expected $789.91 million and showing only a marginal 0.28% increase year-over-year. The company's operating income for Q1 stood at $122.3 million.

Adding to investor concerns, Entegris provided a weak outlook for the second quarter, citing the anticipated impact of new tariffs on its U.S. sales to China. The company forecasts Q2 revenue in the range of $735 million to $775 million, significantly below analysts' consensus estimate of $823.5 million. Additionally, the projected adjusted earnings per share between $0.60 and $0.67 fall short of the $0.71 expected by analysts. CEO Bertrand Loy acknowledged the increased uncertainty in the industry due to new tariff regimes, stating, "While new tariff regimes have increased uncertainty in our industry and have impacted forward visibility, our overall business remains strong." The combination of missed earnings, revenue shortfall, and cautious guidance in light of tariff concerns has likely contributed to the significant pre-market sell-off as investors reassess their expectations for the company's growth and profitability in the current market environment.