50 best performing in sandp in dec 1998

Amazon (AMZN) had the highest return in December 1998 by a US stock in the S&P 500 (GSPC), returning 73.2%.

ASSET MONTH % RETURN
Amazon (AMZN)
December 1998
73.19%
Skyworks Solutions (SWKS)
December 1998
65.52%
Charles Schwab (SCHW)
December 1998
59.02%
Qorvo (QRVO)
December 1998
57.87%
FactSet Research Systems (FDS)
December 1998
52.94%
Analog Devices (ADI)
December 1998
50.3%
VeriSign (VRSN)
December 1998
48.74%
Biogen (BIIB)
December 1998
48.62%
Copart (CPRT)
December 1998
41.67%
Cognizant Technology Solutions Corp Class A (CTSH)
December 1998
40.49%
CoStar (CSGP)
December 1998
40.28%
Amgen (AMGN)
December 1998
40.12%
FedEx (FDX)
December 1998
38.01%
Carnival (CCL)
December 1998
36.17%
ResMed (RMD)
December 1998
35.95%
Electronic Arts (EA)
December 1998
33.83%
Teradyne (TER)
December 1998
33.2%
Gilead Sciences (GILD)
December 1998
32.45%
Albemarle (ALB)
December 1998
31.58%
Stryker (SYK)
December 1998
30.79%
Jabil Circuit (JBL)
December 1998
29.28%
eBay (EBAY)
December 1998
28.97%
KLA-Tencor (KLAC)
December 1998
28.28%
Martin Marietta Materials (MLM)
December 1998
28.06%
Oracle (ORCL)
December 1998
28.01%