GSI Technology (GSIT) had the highest return between 2008 and 2009 by a US stock when the return was < 73%, returning 73%.

ASSET	YEARS	% RETURN
GSI Technology (GSIT)	2008-2009	72.97%
Compass Minerals International (CMP)	2008-2009	71.8%
Ross Stores (ROST)	2008-2009	71.59%
ATN International (ATNI)	2008-2009	71.58%
Centrais Electricas Brasileiras (EBR)	2008-2009	71.57%
NioCorp Developments Ltd Common Stock (NB)	2008-2009	70.36%
Lendway (LDWY)	2008-2009	70.1%
Stifel Financial (SF)	2008-2009	69.94%
Treehouse Foods (THS)	2008-2009	68.96%
Skyworks Solutions (SWKS)	2008-2009	67.53%
VerifyMe (VRME)	2008-2009	66.67%
Nixxy (NIXX)	2008-2009	66.6%
Emerson Radio (MSN)	2008-2009	66.33%
Waste Connections (WCN)	2008-2009	66.19%
NVE (NVEC)	2008-2009	65.12%
Lightwave Logic (LWLG)	2008-2009	64.37%
Galapagos NV ADR (GLPG)	2008-2009	64.07%
Vanda Pharmaceuticals (VNDA)	2008-2009	62.57%
Celestica (CLS)	2008-2009	61.64%
Unifi (UFI)	2008-2009	61%
Haverty Furniture Companies (HVT.A)	2008-2009	58.64%
Celsius (CELH)	2008-2009	58.14%
8x8 Inc Common Stock (EGHT)	2008-2009	57.89%
Haverty Furniture Companies (HVT)	2008-2009	57.43%
Synnex (SNX)	2008-2009	57.23%