. ; fiserv , inc. ; fleetcor technologies , inc. ; global payments , inc. ; square , inc. ; ss&c technologies holdings , inc. ; total system services , inc. ; tyler technologies , inc. ; verint systems , inc. ; and wex , inc . companies in the 2018 peer group were aci worldwide , inc. ; bottomline technology , inc. ; broadridge financial solutions ; cardtronics , inc. ; corelogic , inc. ; euronet worldwide , inc. ; fair isaac corp. ; fidelity national information services , inc. ; fiserv , inc