The greatest disappointment in the quarter was from MasterCard, Inc. (MA) whose stock price declined 10.6% and negatively impacted performance in the quarter by 37 basis points. This negative performance is attributable to results for the fourth quarter of 2013 coming in below estimates. The company decided to invest additional money in support of new customers which reduced earnings. The outlook for MasterCard, Inc. and Visa Inc. is positive as the volume of business increases when countries move from paper based systems for commerce to electronic ones.
From Westport Funds First Quarter 2014 investor letter.