Clearfield (CLFD) had the highest return between 2008 and 2009 by a US stock when the return was < 230%, returning 229.1%.

ASSET	YEARS	% RETURN
Clearfield (CLFD)	2008-2009	229.11%
Dyadic International (DYAI)	2008-2009	214.67%
Axogen (AXGN)	2008-2009	209.22%
Compugen (CGEN)	2008-2009	203.13%
New Concept Energy (GBR)	2008-2009	194.29%
Achieve Life Sciences (ACHV)	2008-2009	194.15%
Pegasystems (PEGA)	2008-2009	190.23%
Onity (ONIT)	2008-2009	187.79%
Mativ (MATV)	2008-2009	185.26%
Delcath Systems (DCTH)	2008-2009	182.38%
Lithium Argentina (LAR)	2008-2009	181.64%
Evogene (EVGN)	2008-2009	177.78%
Emergent Biosolutions (EBS)	2008-2009	171.26%
Alpha Pro Tech (APT)	2008-2009	164.33%
Nova (NVMI)	2008-2009	159.44%
Gyre Therapeutics (GYRE)	2008-2009	153.03%
Ituran Location and Control (ITRN)	2008-2009	152.86%
NexMetals Mining Corp Common Shares (NEXM)	2008-2009	150%
Mexco Energy (MXC)	2008-2009	149%
Gold Resource (GORO)	2008-2009	147.8%
National Presto Industries (NPK)	2008-2009	144.84%
Clearwater Paper (CLW)	2008-2009	144.31%
China Automotive Systems (CAAS)	2008-2009	142.67%
Eldorado Gold (EGO)	2008-2009	137.35%
GT Biopharma (GTBP)	2008-2009	134.44%