Service Corporation International (SCI) had the highest return in April 2000 by a large-cap US stock, returning 67.3%.

ASSET	MONTH	% RETURN
Service Corporation International (SCI)	April 2000	67.34%
Advanced Micro Devices (AMD)	April 2000	47.68%
Quest Diagnostics (DGX)	April 2000	45.47%
Laboratory Corporation of America (LH)	April 2000	41.79%
Advanced Energy Industries (AEIS)	April 2000	39.39%
CNH Industrial (CNH)	April 2000	36.71%
Teradyne (TER)	April 2000	34.15%
CoreSite Realty (COR)	April 2000	33.89%
Northrop Grumman (NOC)	April 2000	33.88%
CH Robinson Worldwide (CHRW)	April 2000	31.58%
Essential Utilities (WTRG)	April 2000	31.51%
Watsco (WSO.B)	April 2000	29.37%
BlackRock (BLK)	April 2000	28.4%
Boston Scientific (BSX)	April 2000	26.57%
Entergy (ETR)	April 2000	25.61%
Amphenol (APH)	April 2000	25.31%
Pinnacle West Capital (PNW)	April 2000	24.82%
Lockheed Martin (LMT)	April 2000	23.99%
Republic Services (RSG)	April 2000	23.73%
FirstEnergy (FE)	April 2000	23.33%
ICICI Bank (IBN)	April 2000	23.21%
PG&E (PCG)	April 2000	23.14%
Watsco (WSO)	April 2000	22.89%
American Electric Power (AEP)	April 2000	22.85%
Norfolk Southern (NSC)	April 2000	22.61%

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