what is the best performing mid cap stock from december 2006 to february 2009

Argan (AGX) had the highest return between December 1, 2006 and February 28, 2009 by a mid-cap US stock, returning 221.8%.

ASSET DATE % RETURN
Argan (AGX)
12/1/2006 - 2/28/2009
221.81%
Cal-Maine Foods (CALM)
12/1/2006 - 2/28/2009
186.13%
Amneal Pharmaceuticals, Inc Class A Common Stock (AMRX)
12/1/2006 - 2/28/2009
140%
ICL Israel Chemicals (ICL)
12/1/2006 - 2/28/2009
123.98%
Sociedad Quimica y Minera de Chile SA ADR B (SQM)
12/1/2006 - 2/28/2009
115.73%
Mosaic (MOS)
12/1/2006 - 2/28/2009
101.63%
Adtalem Global Education (ATGE)
12/1/2006 - 2/28/2009
98.5%
Grand Canyon Education (LOPE)
12/1/2006 - 2/28/2009
70.2%
Open Text (OTEX)
12/1/2006 - 2/28/2009
66.63%
Veren (VRN)
12/1/2006 - 2/28/2009
55.29%
Halozyme Therapeutics (HALO)
12/1/2006 - 2/28/2009
53.29%
Eldorado Gold (EGO)
12/1/2006 - 2/28/2009
45.76%
Pegasystems (PEGA)
12/1/2006 - 2/28/2009
45.65%
Companhia Siderurgica Nacional ADR (SID)
12/1/2006 - 2/28/2009
42.01%
VSE (VSEC)
12/1/2006 - 2/28/2009
39.47%
New Oriental Education & Technology (EDU)
12/1/2006 - 2/28/2009
39.04%
Compania de Minas Buenaventura SAA ADR (BVN)
12/1/2006 - 2/28/2009
38.3%
FTI Consulting (FCN)
12/1/2006 - 2/28/2009
36.55%
Repligen (RGEN)
12/1/2006 - 2/28/2009
31.65%
Masimo (MASI)
12/1/2006 - 2/28/2009
31.53%
Flowers Foods (FLO)
12/1/2006 - 2/28/2009
31.28%
Corcept Therapeutics (CORT)
12/1/2006 - 2/28/2009
31.03%
Maximus (MMS)
12/1/2006 - 2/28/2009
29.16%
Tetra Tech (TTEK)
12/1/2006 - 2/28/2009
28.44%
Exponent (EXPO)
12/1/2006 - 2/28/2009
26.74%
Mid-cap stocks are treated as having a market cap between $2B and $10B.