Why Are EPAM Shares Trading Higher Premarket?

Why Are EPAM Shares Trading Higher Premarket?
A wagon of a freight train of the Kansas City Southern Railway Company is pictured in Toluca, Mexico on Oct. 1, 2018. Edgard Garrido/Reuters
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EPAM Systems Inc. will replace Kansas City Southern in the S&P 500 effective before trading on December 14.

EPAM provides software product development and digital platform engineering services to global clients.