Keurig Dr Pepper Inc. is up 7.9% pre-open trading Monday, after the company was added to the.

On Friday, S&P Dow Jones Indices announced that Keurig Dr Pepper would replace Under Armour Inc. (NYSE:) in the index.

To coincide with the quarterly balance, the change will take effect before the opening of trading Tuesday, June 21 (post-close Friday, June 17).

S&P said the charges are being made to ensure each index is more representative of its market capitalization range.