10 favorite stocks of fund managers with ‘concentrated’ portfolios By: MarketWatch June 28, 2018 at 05:08 AM EDT These managers hold only about two dozen companies, aiming for higher returns amid more risk. Read More >> Related Stocks: Alphabet-A Alphabet-C American Tower Corp A Booking Holdings Inc Charles Schwab Cognizant Technology Solutions Facebook MasterCard Microsoft O'Reilly Automotive Visa