Sandstorm Gold Ltd N (SAND) had the highest return in Q1 2010 by a US stock with a market cap of $100M+, returning 432,700%.

ASSET	QUARTER	% RETURN
Sandstorm Gold Ltd N (SAND)	Q1 2010	432,700%
Ferguson (FERG)	Q1 2010	176,350.56%
Red Cat (RCAT)	Q1 2010	500%
Electrovaya Inc Common Shares (ELVA)	Q1 2010	327.32%
Wabash National (WNC)	Q1 2010	274.86%
Houston American Energy (HUSA)	Q1 2010	192.86%
Opus Genetics (IRD)	Q1 2010	145.45%
Empire Petroleum (EP)	Q1 2010	134.26%
Novanta (NOVT)	Q1 2010	132.94%
Aurinia Pharmaceuticals (AUPH)	Q1 2010	120.86%
Arrowhead Pharmaceuticals (ARWR)	Q1 2010	115.09%
Radian (RDN)	Q1 2010	107.49%
Mesabi Trust (MSB)	Q1 2010	98.72%
Hanmi Financial (HAFC)	Q1 2010	98.35%
Aehr Test Systems (AEHR)	Q1 2010	92.98%
MiMedx (MDXG)	Q1 2010	91.78%
Kolibri Global Energy Inc Common stock (KGEI)	Q1 2010	91.41%
TSS, Inc Common Stock (TSSI)	Q1 2010	88.71%
MGIC Investment (MTG)	Q1 2010	86.56%
Radcom (RDCM)	Q1 2010	86.45%
BV Financial, Inc Common Stock (BVFL)	Q1 2010	84.62%
Consumer Portfolio Services (CPSS)	Q1 2010	84.42%
Hudson Technologies (HDSN)	Q1 2010	80.56%
Vera Therapeutics (VERA)	Q1 2010	80%
Safehold (SAFE)	Q1 2010	80%