best performing sandp stocks by month in 1991

NVR (NVR) had the best month in 1991 by a US stock in the S&P 500 (GSPC) in January 1991, returning 183.3%.

ASSETMONTH% RETURN
NVR (NVR)
January 1991
183.33%
Jack Henry & Associates (JKHY)
February 1991
55.51%
Ross Stores (ROST)
May 1991
52.93%
Waste Management (WM)
March 1991
51.8%
Advanced Micro Devices (AMD)
January 1991
48.72%
Genesis Healthcare (GEN)
December 1991
48.33%
IDEXX Laboratories (IDXX)
October 1991
47.23%
Caseys General Stores (CASY)
January 1991
46.82%
Best Buy (BBY)
May 1991
45.98%
Qualcomm (QCOM)
December 1991
45.61%
Amgen (AMGN)
March 1991
45.43%
Electronic Arts (EA)
August 1991
44.36%
Best Buy (BBY)
June 1991
43.53%
PTC (PTC)
January 1991
43.14%
Waste Management (WM)
June 1991
42.24%
Vertex Pharmaceuticals (VRTX)
September 1991
42.17%
Williams-Sonoma (WSM)
July 1991
41.68%
Bio-Techne (TECH)
August 1991
40.86%
Charles Schwab (SCHW)
January 1991
39.59%
PTC (PTC)
December 1991
39.31%
US Bancorp (USB)
February 1991
39.25%
Charles Schwab (SCHW)
December 1991
39.12%
Adobe Systems (ADBE)
December 1991
38.62%
Advanced Micro Devices (AMD)
October 1991
37.83%
Applied Materials (AMAT)
January 1991
37.19%