— Shares slid more than 3% following reports that the Environmental Protection Agency sent the rail company a notice of potential liability over the weekend. The notice was related to last week's explosion and derailment of railcars containing hazardous materials in East Palestine, Ohio.— Shares of the Facebook parent rose 2.
6% after the Financial Times reported it is planning a fresh round of layoffs after it last let go of 11,000 employees in November. The company's stock price has soared by more than 44% so far this year.— Shares of the machinery company fell more than 1% after Baird downgraded Caterpillar to neutral from outperform. The investment firm said in a note to clients that Caterpillar is "nearing a cyclical pivot point" and that revenue growth is set to slow.