Workday (WDAY) had the highest return in November 2018 by a US stock in the S&P 500 (GSPC), returning 22.8%.

ASSET	MONTH	% RETURN
Workday (WDAY)	November 2018	22.8%
Genesis Healthcare (GEN)	November 2018	22.35%
AbbVie (ABBV)	November 2018	21.31%
Caesars Entertainment (CZR)	November 2018	20.72%
Enphase Energy (ENPH)	November 2018	18.68%
Dell Technologies (DELL)	November 2018	16.05%
Mettler-Toledo International (MTD)	November 2018	15.79%
Advanced Micro Devices (AMD)	November 2018	15.7%
Westinghouse Air Brake Technologies (WAB)	November 2018	15.56%
Norwegian Cruise Line (NCLH)	November 2018	15.17%
Starbucks (SBUX)	November 2018	15.06%
Mosaic (MOS)	November 2018	14.87%
Fastenal (FAST)	November 2018	14.78%
Expeditors International of Washington (EXPD)	November 2018	13.97%
Microchip Technology (MCHP)	November 2018	13.77%
Hologic (HOLX)	November 2018	13.76%
Parker-Hannifin (PH)	November 2018	13.73%
Deere (DE)	November 2018	13.71%
Applied Materials (AMAT)	November 2018	13.67%
United Airlines (UAL)	November 2018	12.94%
Universal Health Services (UHS)	November 2018	12.77%
Stanley Black & Decker (SWK)	November 2018	12.68%
Monster Beverage (MNST)	November 2018	12.6%
Super Micro Computer (SMCI)	November 2018	12.54%
ON Semiconductor (ON)	November 2018	12.43%