what is the most performance mid cap stock between may 30 2012 and december 30 2012

Sarepta Therapeutics (SRPT) had the highest return between May 30, 2012 and December 30, 2012 by a mid-cap US stock, returning 458.5%.

ASSET DATE % RETURN
Sarepta Therapeutics (SRPT)
5/30/2012 - 12/30/2012
458.45%
Vipshop (VIPS)
5/30/2012 - 12/30/2012
251.53%
ACADIA Pharmaceuticals (ACAD)
5/30/2012 - 12/30/2012
222.14%
Radian (RDN)
5/30/2012 - 12/30/2012
125.49%
Madrigal Pharmaceuticals (MDGL)
5/30/2012 - 12/30/2012
111.67%
Mr Cooper (COOP)
5/30/2012 - 12/30/2012
104.65%
KB Home (KBH)
5/30/2012 - 12/30/2012
102.02%
Louisiana-Pacific (LPX)
5/30/2012 - 12/30/2012
89.58%
CVR Energy (CVI)
5/30/2012 - 12/30/2012
79.18%
Generac (GNRC)
5/30/2012 - 12/30/2012
75.08%
Eagle Materials (EXP)
5/30/2012 - 12/30/2012
74.51%
SkyWest (SKYW)
5/30/2012 - 12/30/2012
71.13%
Archrock (AROC)
5/30/2012 - 12/30/2012
70.95%
Cemex SAB de CV ADR (CX)
5/30/2012 - 12/30/2012
70.42%
InterDigital (IDCC)
5/30/2012 - 12/30/2012
65.54%
Ambarella (AMBA)
5/30/2012 - 12/30/2012
63.93%
Ligand Pharmaceuticals (LGND)
5/30/2012 - 12/30/2012
63.82%
West Fraser Timber (WFG)
5/30/2012 - 12/30/2012
61.95%
Whirlpool (WHR)
5/30/2012 - 12/30/2012
60.77%
LG Display (LPL)
5/30/2012 - 12/30/2012
59.08%
IES (IESC)
5/30/2012 - 12/30/2012
57%
Grupo Aeroportuario del Sureste SAB de CV ADR (ASR)
5/30/2012 - 12/30/2012
56.91%
HF Sinclair (DINO)
5/30/2012 - 12/30/2012
56.9%
M/I Homes (MHO)
5/30/2012 - 12/30/2012
56.84%
Banner (BANR)
5/30/2012 - 12/30/2012
56.75%
Mid-cap stocks are treated as having a market cap between $2B and $10B.