worst performing stocks in the sandp oct 1989

KLA-Tencor (KLAC) had the lowest return in October 1989 by a US stock in the S&P 500 (GSPC), returning -30.6%.

ASSET MONTH % RETURN
KLA-Tencor (KLAC)
October 1989
-30.61%
Pinnacle West Capital (PNW)
October 1989
-24.49%
Universal Health Services (UHS)
October 1989
-24.18%
Jack Henry & Associates (JKHY)
October 1989
-23.12%
Ross Stores (ROST)
October 1989
-19.05%
Monster Beverage (MNST)
October 1989
-18.49%
Micron Technology (MU)
October 1989
-17.65%
Kroger (KR)
October 1989
-17.57%
JPMorgan Chase (JPM)
October 1989
-17.23%
Texas Instruments (TXN)
October 1989
-16.93%
Cooper Companies (COO)
October 1989
-16.67%
Waste Management (WM)
October 1989
-16.64%
Carnival (CCL)
October 1989
-16.49%
Western Digital (WDC)
October 1989
-16.42%
Thermo Fisher Scientific (TMO)
October 1989
-15.88%
Molson Coors Brewing (TAP)
October 1989
-14.75%
S&P Global (SPGI)
October 1989
-14.6%
Southwest Airlines (LUV)
October 1989
-14.48%
West Pharmaceutical Services (WST)
October 1989
-13.98%
Cummins (CMI)
October 1989
-13.91%
NVR (NVR)
October 1989
-13.7%
Northrop Grumman (NOC)
October 1989
-13.66%
Valero Energy (VLO)
October 1989
-13.18%
Ametek (AME)
October 1989
-12.82%
Teradyne (TER)
October 1989
-12.37%