Each weekday, 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 companies that were on our list as of Thursday, Oct. 4.

CIRCOR International ( CIR):

( KSCVX) Keeley Small Cap Value held 4.84% of the company's shares outstanding as of Feb. 28, which represented 0.72% of the fund's assets, according to Thomson Financial.

Tennant Company ( TNC):

( RYTRX) Royce Total Return Fund held 527,600 shares as of June 30, according to the company's Web site, around 0.30% of its total assets.

The Midland Company ( MLAN):

T. Rowe Small-Cap Value ( PRSVX) allocated 0.64% of its total portfolio as of June 30, holding 900,000 shares, according to the company's Web site.

Atlantic Tele-Network ( ATNI):

( FRMCX) Franklin MicroCap Value devoted 3.4% of its total assets to Atlantic Tele-Network as of August 31, according to Franklin's Web site.

Lubrizol ( LZ):

iShares Dow Jones Select Dividend Index Fund ( DVY)held nearly 1.63 million shares of the company, representing 1.33% of its total assets, as of Oct. 3, according to the company's Web site.

For a description of the companies and an explanation of their ratings, click here .