PetVivo (PETV) had the highest return between 2014 and 2015 by a US stock, returning 52,244.9%.

ASSET	YEARS	% RETURN
PetVivo (PETV)	2014-2015	52,244.89%
GreenPro Capital (GRNQ)	2014-2015	1,400%
Patriot National Bancorp (PNBK)	2014-2015	1,287.01%
INVO Bioscience (INVO)	2014-2015	1,196.3%
NAYA Biosciences (NAYA)	2014-2015	1,196.3%
Empire Petroleum (EP)	2014-2015	1,024.38%
FingerMotion (FNGR)	2014-2015	940%
Natural Health Trend (NHTC)	2014-2015	939.81%
Andretti Acquisition Corp II Class A Ordinary Shares (POLE)	2014-2015	896.73%
Panbela Therapeutics (PBLA)	2014-2015	657.58%
Enveric Biosciences (ENVB)	2014-2015	649.63%
Ainos (AIMD)	2014-2015	647.66%
Workhorse (WKHS)	2014-2015	603.91%
Applied Digital (APLD)	2014-2015	580%
Interlink Electronics (LINK)	2014-2015	571.96%
Cyclo Therapeutics (CYTH)	2014-2015	511.79%
Green Brick Partners (GRBK)	2014-2015	510.53%
Neurocrine Biosciences (NBIX)	2014-2015	510.25%
Focus Universal (FCUV)	2014-2015	510.05%
Anavex Life Sciences (AVXL)	2014-2015	457%
Intracellular Th (ITCI)	2014-2015	437.9%
MGP Ingredients (MGPI)	2014-2015	398.51%
Celsius (CELH)	2014-2015	397.46%
authID (AUID)	2014-2015	380%
CleanSpark (CLSK)	2014-2015	350%