Top 10 Fastest-Growing Mid-Cap Stocks: UTHR, ACI, BEXP, OPEN, ALXN, GMCR, BWA, HK, VR, MELI (Mar 28, 2011)

Below are the top 10 fastest-growing Mid-Cap stocks, based on the average long-term earnings growth rate estimated by Wall Street analysts.

United Therapeutics Corporation (NASDAQ:UTHR) is the 1st fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 69.8%. This number is based on the average estimate of 7 brokerage analysts. Arch Coal, Inc. (NYSE:ACI) is the 2nd fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 42.8%. This number is based on the average estimate of 4 brokerage analysts.Brigham Exploration Company (NASDAQ:BEXP) is the 3rd fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 38.5%. This number is based on the average estimate of 4 brokerage analysts.OpenTable Inc (NASDAQ:OPEN) is the 4th fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 38.3%. This number is based on the average estimate of 6 brokerage analysts. Alexion Pharmaceuticals, Inc. (NASDAQ:ALXN) is the 5th fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 37.9%. This number is based on the average estimate of 9 brokerage analysts.

Green Mountain Coffee Roasters Inc. (NASDAQ:GMCR) is the 6th fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 34.6%. This number is based on the average estimate of 6 brokerage analysts. BorgWarner Inc. (NYSE:BWA) is the 7th fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 34.2%. This number is based on the average estimate of 3 brokerage analysts.Petrohawk Energy Corporation (NYSE:HK) is the 8th fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 32.6%. This number is based on the average estimate of 8 brokerage analysts. Validus Holdings, Ltd. (NYSE:VR) is the 9th fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 31.1%. This number is based on the average estimate of 3 brokerage analysts. MercadoLibre, Inc. (NASDAQ:MELI) is the 10th fastest-growing stock in this segment of the market. Its long-term annual EPS growth is expected to be 30.9%. This number is based on the average estimate of 4 brokerage analysts.