TG Therapeutics (TGTX) had the highest return in January 2009 by a US stock with a market cap of $2B+, returning 400%.

ASSET	MONTH	% RETURN
TG Therapeutics (TGTX)	January 2009	400%
EXACT Sciences (EXAS)	January 2009	161.4%
B2Gold (BTG)	January 2009	80.13%
Amneal Pharmaceuticals, Inc Class A Common Stock (AMRX)	January 2009	79.2%
Novanta (NOVT)	January 2009	65.45%
New Gold (NGD)	January 2009	61.07%
AerCap (AER)	January 2009	54.11%
Hudbay Minerals (HBM)	January 2009	50.02%
Celsius (CELH)	January 2009	49.98%
MYR (MYRG)	January 2009	44.58%
Synaptics (SYNA)	January 2009	42.94%
Cheniere Energy Partners (CQP)	January 2009	42.83%
Patrick Industries (PATK)	January 2009	42.52%
Domino's Pizza Inc Common Stock (DPZ)	January 2009	41.74%
Vericel Corp Ord (VCEL)	January 2009	41.23%
Micron Technology (MU)	January 2009	40.38%
Madrigal Pharmaceuticals (MDGL)	January 2009	39.24%
Qorvo (QRVO)	January 2009	36.71%
BlackBerry (BB)	January 2009	36.08%
BioCryst Pharmaceuticals (BCRX)	January 2009	35.71%
Synnex (SNX)	January 2009	34.41%
Sarepta Therapeutics (SRPT)	January 2009	33.85%
Catalyst Pharmaceuticals (CPRX)	January 2009	33.82%
Spirit Aerosystems (SPR)	January 2009	33.6%
Louisiana-Pacific (LPX)	January 2009	32.49%