Ammo (POWW) had the highest return in October 2013 by a US stock, returning 176.2%.

ASSET	MONTH	% RETURN
Ammo (POWW)	October 2013	176.24%
NAYA Biosciences (NAYA)	October 2013	150%
Tenax Therapeutics (TENX)	October 2013	114.08%
Perdoceo Education (PRDO)	October 2013	100.73%
Cemtrex (CETX)	October 2013	95.51%
Recon Technology (RCON)	October 2013	94.78%
Clean Energy Technologies, Inc Common Stock (CETY)	October 2013	93.33%
Energy Focu (EFOI)	October 2013	92.5%
Fonar (FONR)	October 2013	87.44%
Astrotech (ASTC)	October 2013	86.67%
Maywood Acquisition Corp Class A Ordinary Shares (MAYA)	October 2013	79.86%
Precision Optics Corporation, Inc Common stock (POCI)	October 2013	77.46%
icad (ICAD)	October 2013	69.62%
Aptose Biosciences (APTO)	October 2013	65.35%
International Tower Hill Mines (THM)	October 2013	64.5%
Burlington Stores (BURL)	October 2013	57.59%
QXO (QXO)	October 2013	56.92%
Sphere 3D (ANY)	October 2013	56.16%
Protagenic Therapeutics (PTIX)	October 2013	53.85%
BioLife Solutions (BLFS)	October 2013	52.5%
EVI Industries (EVI)	October 2013	50.76%
Newegg Commerce (NEGG)	October 2013	50.23%
Vivakor (VIVK)	October 2013	50.17%
SRAX (SRAX)	October 2013	50%
Precipio (PRPO)	October 2013	48.65%