Each business day, 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. This list is based on data from the close of the previous trading session. Today we focus on mid-caps. These are stocks of companies that have market capitalizations of between $500 million and $10 billion that rank near the top of all stocks rated by our proprietary quantitative model, which looks at more than 60 factors. The stocks must also be followed by at least one financial analyst who posts estimates on the Institutional Brokers' Estimate System. They are ordered by their potential to appreciate. Note that no provision is made for off-balance-sheet assets such as unrealized appreciation/depreciation of investments, market value of real estate or contingent liabilities that might affect book value. This could be material for some companies with large underfunded pension plans. Amphenol ( APH) designs, manufactures and markets electrical, electronic and fiber-optic connectors, interconnect systems and coaxial and flat-ribbon cable. Our buy rating for Amphenol has been in place since June 2003. The company reported record earnings-per-share growth of 33% year over year for the second quarter of fiscal 2008, along with record sales that rose 23% to $846.8 million. The global communications, military and commercial aerospace markets performed particularly well for the company, although growth was broad based. Net income for the second quarter rose to $110 million from $84 million a year ago. During the quarter, Amphenol broadened its technology offering in the military market by completing the acquisition of a U.S. manufacturer of audio interconnect products for that market. Additionally, the company's profitability and cash flow remained strong in the second quarter.