Co-manager of the winning Oakmark Select Fund sees value in this payments stock

Igor Golovniov | LightRocket | Getty Images

Oakmark Funds portfolio manager Tony Coniaris told CNBC on Wednesday that Fiserv has become one of his new favorite stocks and said it has room to grow.

Oakmark, led by value investor Bill Nygren, primarily focuses on buy-and-hold investing. Coniaris said on "Squawk on the Street" that he has recently added the financial technology company to multiple funds.

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