Novanta (NOVT) had the best month in 2010 by a mid-cap US stock in the Information Technology Sector in March 2010, returning 102%.

ASSET	MONTH	% RETURN
Novanta (NOVT)	March 2010	102.04%
Applied Digital (APLD)	December 2010	75%
Riot Blockchain (RIOT)	April 2010	69.33%
Applied Digital (APLD)	February 2010	55.56%
Cirrus Logic (CRUS)	April 2010	51.31%
Applied Digital (APLD)	October 2010	50%
Silicon Motion Technology (SIMO)	March 2010	49%
Agilysys (AGYS)	September 2010	46.07%
Sapiens International (SPNS)	September 2010	43.59%
Advanced Energy Industries (AEIS)	July 2010	43.4%
Lattice Semiconductor (LSCC)	April 2010	42.93%
Onto Innovation (ONTO)	August 2010	42.63%
Sapiens International (SPNS)	March 2010	42.01%
Tower Semiconductor (TSEM)	February 2010	41.74%
Axcelis Technologies (ACLS)	April 2010	41.67%
Kulicke and Soffa Industries (KLIC)	February 2010	41.51%
Vishay Intertechnology (VSH)	July 2010	40.54%
Novanta (NOVT)	April 2010	39.59%
Axcelis Technologies (ACLS)	September 2010	38.85%
Axcelis Technologies (ACLS)	December 2010	35.69%
Cognex (CGNX)	September 2010	35.59%
Vishay Intertechnology (VSH)	February 2010	35.05%
Viavi Solutions (VIAV)	February 2010	33.79%
Lattice Semiconductor (LSCC)	December 2010	33.48%
Riot Blockchain (RIOT)	October 2010	33.33%

Mid-cap stocks are treated as having a market cap between $2B and $10B.