Images By Tang Ming Tung Fidelity National Information Services (NYSE:FIS) has gone back to its past, having sold a controlling stake in the Worldpay merchant services business to a private equity buyer, FIS is once again focused on its long-time core businesses of providing outsourced processing, payment, and tech solutions to banking and investment clients. It's a business that has performed well for FIS in the past and where it still holds strong share. Better still, it's a business where competitive pre ...