 Shares of EPAM Systems Inc. EPAM, 0.04 tumbled 9.8 to pace all SP 500 SPX, 2.24 components in premarket losses, after the provider of digital platform engineering services said it was withdrawing its financial guidance as a result of military actions in Ukraine. The company had said in its fourth-quarter earnings report out Feb. 17 that it expected first-quarter revenue of 1.17 billion to 1.18 billion and 2022 revenue of at least 5.15 billion, which compared with the FactSet consensus at the end of January for first-quarter revenue of 1.11 billion and 2022 revenue of 4.87 billion. 