Lifevantage (LFVN) had the highest return between 1997 and 1997 by a US stock, returning 900%.

ASSET	YEARS	% RETURN
Lifevantage (LFVN)	1997-1997	900.01%
Cps Technologies (CPSH)	1997-1997	620%
Vaalco Energy (EGY)	1997-1997	591.71%
Stabilis Solutions (SLNG)	1997-1997	400%
DSS (DSS)	1997-1997	350%
Lisata Therapeutics (LSTA)	1997-1997	340%
LivaNova (LIVN)	1997-1997	335.71%
American Eagle Outfitters (AEO)	1997-1997	316.42%
Sirius XM (SIRI)	1997-1997	287.14%
Ballard Power Systems (BLDP)	1997-1997	273.62%
Precision Optics Corporation, Inc Common stock (POCI)	1997-1997	266.67%
Safehold (SAFE)	1997-1997	250%
Microvision (MVIS)	1997-1997	250%
Best Buy (BBY)	1997-1997	247.05%
Milestone Scientific (MLSS)	1997-1997	241.03%
Pathfinder Bancorp (PBHC)	1997-1997	232.24%
Algorhythm (RIME)	1997-1997	220%
Lakeland Industries (LAKE)	1997-1997	209.09%
Opko Health (OPK)	1997-1997	205.56%
Virco Manufacturing (VIRC)	1997-1997	201.22%
Alto Ingredients (ALTO)	1997-1997	200.12%
Neonode (NEON)	1997-1997	200%
Odyssey Marine Exploration (OMEX)	1997-1997	200%
Sanara Medtech (SMTI)	1997-1997	200%
Newtek Business Services (NEWT)	1997-1997	199.99%