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

Sarepta Therapeutics (SRPT) had the highest return between May 30, 2012 and July 30, 2012 by a mid-cap US stock, returning 122.3%.

ASSETDATE% RETURN
Sarepta Therapeutics (SRPT)
5/30/2012 - 7/30/2012
122.3%
Catalyst Pharmaceuticals (CPRX)
5/30/2012 - 7/30/2012
117.39%
Supernus Pharmaceuticals (SUPN)
5/30/2012 - 7/30/2012
114.38%
Ligand Pharmaceuticals (LGND)
5/30/2012 - 7/30/2012
53.62%
Aura Minerals Inc Common Shares (AUGO)
5/30/2012 - 7/30/2012
39.28%
HCI (HCI)
5/30/2012 - 7/30/2012
30.3%
Denison Mines (DNN)
5/30/2012 - 7/30/2012
28.45%
Grifols SA ADR (GRFS)
5/30/2012 - 7/30/2012
28.37%
Grupo Aeroportuario del Sureste SAB de CV ADR (ASR)
5/30/2012 - 7/30/2012
27.99%
Nova (NVMI)
5/30/2012 - 7/30/2012
27.63%
Worthington Industries (WOR)
5/30/2012 - 7/30/2012
26.81%
Turkcell Iletisim Hizmetleri AS (TKC)
5/30/2012 - 7/30/2012
26.12%
Galapagos NV ADR (GLPG)
5/30/2012 - 7/30/2012
25.11%
PLDT Inc ADR (PHI)
5/30/2012 - 7/30/2012
24.66%
Archrock (AROC)
5/30/2012 - 7/30/2012
24.55%
KB Home (KBH)
5/30/2012 - 7/30/2012
24.35%
CNO Financial (CNO)
5/30/2012 - 7/30/2012
24.34%
Agilysys (AGYS)
5/30/2012 - 7/30/2012
24.03%
HF Sinclair (DINO)
5/30/2012 - 7/30/2012
23.54%
Federal Signal (FSS)
5/30/2012 - 7/30/2012
21.9%
Delek US Energy (DK)
5/30/2012 - 7/30/2012
21.68%
DaVita HealthCare Partners (DVA)
5/30/2012 - 7/30/2012
21.34%
Telephone and Data Systems (TDS)
5/30/2012 - 7/30/2012
21.15%
Prestige Brand (PBH)
5/30/2012 - 7/30/2012
21.13%
Stewart Information Services (STC)
5/30/2012 - 7/30/2012
21.1%
Mid-cap stocks are treated as having a market cap between $2B and $10B.