London–based Egerton Capital, founded in 1994 by John Armitage and Tiger Cub William Bollinger, is one of Europe’s oldest and longest-running hedge fund firms and one of the first equity long-short funds in the U.K. After falling off of Alpha’s ranking of the 100 largest hedge funds in the world for six years, it’s making a powerful comeback. Egerton’s capital swelled by 82 percent, to $13.23 billion, by the end of 2013, which proved to be a less-than-stellar year for the average hedge fund. Among the firm’s largest holdings were 21st Century Fox, Delta Airlines, Comcast and American Express. Thanks to these impressive gains, Armitage closed the firm’s long-only fund to new investors in September 2013, a year after the firm’s long-short hedge fund stopped accepting new money. Last year, Egerton was ranked the 14th largest hedge fund in Europe, and its lofty gains through 2013 should confidently place it among the top 10 this year. In the past decade, Egerton has struggled to grow as quickly as its competitors, however...