InterContinental Hotels Group PLC ADR (IHG) had the highest return between 2003 and 2004 by a US stock with a market cap of $1B+, returning 8,020,800%.

ASSET	YEARS	% RETURN
InterContinental Hotels Group PLC ADR (IHG)	2003-2004	8,020,800%
Axon Enterprise (AXON)	2003-2004	9,277.78%
Cheniere Energy (LNG)	2003-2004	4,799.94%
Denison Mines (DNN)	2003-2004	1,756%
ArcelorMittal SA ADR (MT)	2003-2004	1,656.81%
Braskem SA Class A (BAK)	2003-2004	1,467.97%
Deckers Outdoor (DECK)	2003-2004	1,319.58%
Camtek (CAMT)	2003-2004	1,296.7%
Freedom (FRHC)	2003-2004	1,222.22%
BlackBerry (BB)	2003-2004	1,151.63%
Frontline (FRO)	2003-2004	1,106.44%
Sirius XM (SIRI)	2003-2004	1,090.63%
Innodata (INOD)	2003-2004	1,044.19%
Williams Companies (WMB)	2003-2004	996.35%
Hub (HUBG)	2003-2004	983.4%
U-Haul (UHAL)	2003-2004	921.78%
Chunghwa Telecom (CHT)	2003-2004	845.27%
Monster Beverage (MNST)	2003-2004	764.01%
Grupo Simec SAB de CV ADR (SIM)	2003-2004	755.55%
Urban Outfitters (URBN)	2003-2004	654.15%
Enpro Industries (NPO)	2003-2004	639.25%
Akamai Technologies (AKAM)	2003-2004	623.89%
Cal-Maine Foods (CALM)	2003-2004	589.54%
Companhia Siderurgica Nacional ADR (SID)	2003-2004	581.99%
BRF SA ADR (BRFS)	2003-2004	573.52%