AuthID (AUID) had the highest return in April 2015 by a US stock, returning 550%.

ASSET	MONTH	% RETURN
authID (AUID)	April 2015	550%
FingerMotion (FNGR)	April 2015	400%
Castellum (CTM)	April 2015	208.33%
Staffing 360 Solutions (STAF)	April 2015	140.47%
Airnet Technology (ANTE)	April 2015	137.88%
NAYA Biosciences (NAYA)	April 2015	127.45%
Intellinetics (INLX)	April 2015	114.29%
eXp World (EXPI)	April 2015	110.07%
ProMIS Neurosciences (PMN)	April 2015	100%
Celsius (CELH)	April 2015	97.58%
Builders FirstSource (BLDR)	April 2015	92.46%
Electrovaya Inc Common Shares (ELVA)	April 2015	91.51%
Altisource Portfolio Solutions (ASPS)	April 2015	89.16%
Applied Digital (APLD)	April 2015	86.36%
Clean Energy Fuels (CLNE)	April 2015	85.18%
Civeo (CVEO)	April 2015	83.14%
Matinas BioPharma (MTNB)	April 2015	81.75%
Predictive Oncology (POAI)	April 2015	81.16%
Genie Energy (GNE)	April 2015	78.9%
Sobr Safe (SOBR)	April 2015	77.78%
Tantech (TANH)	April 2015	76.25%
Galapagos NV ADR (GLPG)	April 2015	76.04%
Citius Pharmaceuticals (CTXR)	April 2015	75%
Uranium Energy (UEC)	April 2015	73.33%
Enveric Biosciences (ENVB)	April 2015	66.67%