best performing mid cap stock between dec 2012 and may 2014

Vipshop (VIPS) had the highest return between December 1, 2012 and May 31, 2014 by a mid-cap US stock, returning 1,095.1%.

ASSETDATE% RETURN
Vipshop (VIPS)
12/1/2012 - 5/31/2014
1,095.15%
Almonty Industries Inc Common Shares (ALM)
12/1/2012 - 5/31/2014
744.88%
Plug Power (PLUG)
12/1/2012 - 5/31/2014
530.43%
BioCryst Pharmaceuticals (BCRX)
12/1/2012 - 5/31/2014
511.04%
Arrowhead Pharmaceuticals (ARWR)
12/1/2012 - 5/31/2014
456.64%
Nexstar Broadcasting (NXST)
12/1/2012 - 5/31/2014
424.49%
ArcBest (ARCB)
12/1/2012 - 5/31/2014
418.03%
MGIC Investment (MTG)
12/1/2012 - 5/31/2014
353.48%
JOYY (JOYY)
12/1/2012 - 5/31/2014
350.59%
Zillow (ZG)
12/1/2012 - 5/31/2014
325.45%
ACADIA Pharmaceuticals (ACAD)
12/1/2012 - 5/31/2014
294.08%
Terawulf (WULF)
12/1/2012 - 5/31/2014
265.26%
Pilgrims Pride (PPC)
12/1/2012 - 5/31/2014
252.84%
Astronics (ATRO)
12/1/2012 - 5/31/2014
239.05%
Ligand Pharmaceuticals (LGND)
12/1/2012 - 5/31/2014
234.22%
Addus HomeCare (ADUS)
12/1/2012 - 5/31/2014
231.3%
Radian (RDN)
12/1/2012 - 5/31/2014
227.39%
Stagwell (STGW)
12/1/2012 - 5/31/2014
218.24%
Ionis Pharmaceuticals (IONS)
12/1/2012 - 5/31/2014
214.87%
Travere Therapeutics (TVTX)
12/1/2012 - 5/31/2014
211.06%
American Airlines (AAL)
12/1/2012 - 5/31/2014
210.84%
Avis Budget (CAR)
12/1/2012 - 5/31/2014
199.63%
Saia (SAIA)
12/1/2012 - 5/31/2014
199.59%
Enphase Energy (ENPH)
12/1/2012 - 5/31/2014
196.49%
Ambarella (AMBA)
12/1/2012 - 5/31/2014
188.22%
Mid-cap stocks are treated as having a market cap between $2B and $10B.