MGM Resorts International (MGM) had the highest return in April 2009 by a large-cap US stock, returning 243.4%.

ASSET	MONTH	% RETURN
MGM Resorts International (MGM)	April 2009	243.44%
Las Vegas Sands (LVS)	April 2009	145.91%
Ford Motor (F)	April 2009	133.6%
QXO (QXO)	April 2009	125%
Principal Financial (PFG)	April 2009	106.31%
Tenet Healthcare (THC)	April 2009	99.12%
Wynn Resorts (WYNN)	April 2009	96.15%
Teck Resources Ltd Class B (TECK)	April 2009	95.55%
Dupont De Nemours (DD)	April 2009	93.47%
CBRE Group Inc Class A (CBRE)	April 2009	91.33%
Textron (TXT)	April 2009	90.25%
American Express (AXP)	April 2009	89.05%
Barclays PLC ADR (BCS)	April 2009	88.8%
Royal Caribbean Cruises (RCL)	April 2009	88.6%
Woodward (WWD)	April 2009	82.12%
International Paper (IP)	April 2009	80.86%
Somnigroup International (SGI)	April 2009	80.36%
Celestica (CLS)	April 2009	71.3%
Natwest (NWG)	April 2009	70.71%
Huntington Bancshares (HBAN)	April 2009	70.12%
Entegris (ENTG)	April 2009	66.28%
ING Group NV ADR (ING)	April 2009	64.13%
TE Connectivity (TEL)	April 2009	62.56%
Lloyds Banking Group PLC ADR (LYG)	April 2009	59.85%
Amkor Technology (AMKR)	April 2009	59.63%

Large-cap stocks are treated as having a market cap of $10B+.