Each week, TheStreet.com Ratings compiles a list of the top five stocks in five categories -- fast-growth, all-around value, large-cap, mid-cap and small-cap -- and publishes these lists in the Ratings section of our Web site .

For investors who prefer the diversification offered by mutual funds to owning individual stocks, here are some of the biggest holders of the small-cap companies that were on our list as of Thursday, Dec. 6.

CAM Commerce Solutions ( CADA):

( BPLSX) Robeco Boston Partners Long/Short allocated about 1.16% of its total portfolio as of May 31, according to Thomson Financial.

LSI Industries ( LYTS):

( GTWNX) Georgetowne Long/Short allocated about 4.97% of its total portfolio as of July 31, according to Thomson Financial.

( HRVIX) Heartland Value Plus allocated about 2.67% of its total portfolio as of June 30, according to Thomson Financial.

Pericom Semiconductor ( PSEM):

( BJMIX) Brazos Micro Cap allocated 1.90% of its total portfolio as of Sept. 30, according to Thomson Financial.

( WMICX) Wasatch Micro Cap allocated 1.51% of its total portfolio as of June 30, according to Thomson Financial.

Axsys Technologies ( AXYS):

( RYDFX) Royce Discovery Fund allocated about 1.17% of its total portfolio as of June 30, according to Thomson Financial.

Astronics Corporation ( ATRO):

( TAMCX) Touchstone Micro Cap Growth allocated 2.66% of its total portfolio as of Sept. 30, according to Thomson Financial.

( RKGRX) Rockland Small Cap Growth allocated 2.13% of its total portfolio as of Sept. 30, according to Thomson Financial.

For a description of the top five small-cap companies and an explanation of their ratings, click here .

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