Perkins Mid-Cap Value Fund ( JMIVX) is a $13 billion fund with a 13.4% return this year. Co-managers Thomas Perkins and Jeffrey Kautz have been at the helm since August 1998 and navigated the fund to a 10-year, 10.8% return, which puts it in the top 3% in its category, according to Morningstar. Its highly diversified portfolio includes 162 stocks with none at a larger weighting of 1.3%. The financial-services sector makes up 23% of the fund and among the largest holdings are the insurance firms Everest RE ( RE), Allstate ( ALL), Partner RE ( PRE) and the asset-management firms Invesco ( IVZ) and State Street ( STT). The fund almost doubled its State Street stake in the quarter ended Sept. 30, buying 2 million shares, which makes it its fifth-largest holding. State Street is one of the largest trust banks worldwide, combining banking, asset servicing and asset-management operations. Its shares have gained 4.4% this year, bringing its loss over the past three years to 42%. The fund also initiated a new holding in the third quarter of TD Ameritrade ( AMTD) by buying 7 million shares. TD Ameritrade has evolved into a diversified retail equities trading and asset management firm via recent acquisitions. Its shares are down 3.4% this year. In its top 10 holdings are the miners Goldcorp ( G) and Freeport McMoRan ( FCX).