Ferguson (FERG) had the highest return between 2008 and 2012 by a US stock with a market cap of $2B+, returning 152,653.7%.

ASSET	YEARS	% RETURN
Ferguson (FERG)	2008-2012	152,653.7%
Amneal Pharmaceuticals, Inc Class A Common Stock (AMRX)	2008-2012	719.6%
Regeneron Pharmaceuticals (REGN)	2008-2012	612.2%
Sandstorm Gold Ltd N (SAND)	2008-2012	539.56%
Ulta Beauty (ULTA)	2008-2012	484.47%
NewMarket (NEU)	2008-2012	464.34%
Bausch Health Companies (BHC)	2008-2012	459.54%
Cirrus Logic (CRUS)	2008-2012	450.76%
Booking (BKNG)	2008-2012	431.38%
Dorman Products (DORM)	2008-2012	427.68%
Tractor Supply (TSCO)	2008-2012	406.8%
Dillards (DDS)	2008-2012	399.17%
Credit Acceptance (CACC)	2008-2012	384.88%
Dollar Tree (DLTR)	2008-2012	369.44%
Westlake Chemical (WLK)	2008-2012	359.39%
Ross Stores (ROST)	2008-2012	349.07%
Trex (TREX)	2008-2012	330.91%
First Majestic Silver (AG)	2008-2012	319.75%
Polaris Industries (PII)	2008-2012	312.29%
LivaNova (LIVN)	2008-2012	299.16%
XPO Logistics (XPO)	2008-2012	295.03%
Edwards Lifesciences (EW)	2008-2012	294.44%
Franco-Nevada (FNV)	2008-2012	292.2%
Transdigm (TDG)	2008-2012	291.1%
Axos Financial (AX)	2008-2012	289.51%