International Stock Fund Manager of the Year: Sarah Ketterer, Harry Hartford and team, Causeway International Value (CIVIX)

2017 Return: 27.1 percent

2017 Morningstar Category Rank (percentile): 14

10-Year Annualized Return: 3.1 percent

10-Year Morningstar Category Rank (percentile): 10

Morningstar Analst Rating: Gold

The team, guided by Sarah Ketterer and Harry Hartford, have demonstated a disciplined approach that has impacted portfolio performance, particularly in long-term results. Notably, an investment in Volkwagen stock during the U.S. emissions disruption, which gained over 40 percent during an uncetain time for the German automaker in 2017, highlighted the team's strategic analysis in long-term value investing, Morningstar said.

"This value-oriented fund's 2017 showing is even more impressive considering the growth-led market environment that has persisted," Lutton said. "The fund also possesses an excellent long-term track record, delivering an 8.3 percent annualized gain since its 2001 inception."