Some of the UK asset management industry's biggest names are running "dog" equity funds – serial underperformers that are not returning value to their clients, according to a new report from broker Bestinvest.

Depressed Dog

A "dog" fund is defined as one that underperforms its benchmark for three consecutive years, and does so by a cumulative 10 percent over the same period. UK investors currently have more than 23 billion pounds ($38 billion) invested in dog funds, up nearly 75 percent since November 2010.