best performing stocks in s and p 500 in 1991 by month

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

ASSET MONTH % RETURN
NVR (NVR)
January 1991
183.33%
Jack Henry & Associates (JKHY)
February 1991
61.54%
Ross Stores (ROST)
May 1991
52.92%
Waste Management (WM)
March 1991
51.79%
Best Buy (BBY)
May 1991
51.22%
Genesis Healthcare (GEN)
December 1991
48.33%
IDEXX Laboratories (IDXX)
October 1991
48.21%
Qualcomm (QCOM)
December 1991
45.57%
Amgen (AMGN)
March 1991
45.43%
Advanced Micro Devices (AMD)
January 1991
45%
Vertex Pharmaceuticals (VRTX)
September 1991
43.9%
PTC (PTC)
January 1991
43.14%
Best Buy (BBY)
June 1991
42.38%
Waste Management (WM)
June 1991
42.24%
Advanced Micro Devices (AMD)
October 1991
41.66%
Electronic Arts (EA)
August 1991
41.56%
Jack Henry & Associates (JKHY)
January 1991
41.22%
Bio-Techne (TECH)
August 1991
40.36%
Williams-Sonoma (WSM)
July 1991
39.73%
Charles Schwab (SCHW)
January 1991
39.55%
PTC (PTC)
December 1991
39.31%
US Bancorp (USB)
February 1991
39.26%
Charles Schwab (SCHW)
December 1991
39.13%
Adobe Systems (ADBE)
December 1991
38.62%
Best Buy (BBY)
January 1991
37.77%