worst performing sandp 500 stocks september 2025

CarMax (KMX) had the lowest return last month by a US stock in the S&P 500 (GSPC), returning -25.8%.

ASSETMONTH% RETURN
CarMax (KMX)
September 2025
-25.77%
FactSet Research Systems (FDS)
September 2025
-22.97%
Kenvue (KVUE)
September 2025
-21.44%
Synopsys (SNPS)
September 2025
-16.24%
Deckers Outdoor (DECK)
September 2025
-14.64%
Humana (HUM)
September 2025
-14.29%
Dollar Tree (DLTR)
September 2025
-13.34%
EPAM Systems (EPAM)
September 2025
-12.7%
LyondellBasell Industries (LYB)
September 2025
-11.77%
Keurig Dr Pepper (KDP)
September 2025
-11.49%
MGM Resorts International (MGM)
September 2025
-11.4%
Lululemon Athletica (LULU)
September 2025
-10.95%
Builders FirstSource (BLDR)
September 2025
-10.85%
S&P Global (SPGI)
September 2025
-10.47%
Erie Indemnity (ERIE)
September 2025
-10.41%
Freeport-McMoran Copper & Gold (FCX)
September 2025
-10.37%
Corpay (CPAY)
September 2025
-10.31%
Constellation Brands Inc Class A (STZ)
September 2025
-10.3%
EOG Resources (EOG)
September 2025
-9.93%
PepsiCo (PEP)
September 2025
-9.93%
Align Technology (ALGN)
September 2025
-9.82%
DexCom (DXCM)
September 2025
-9.28%
Royal Caribbean Cruises (RCL)
September 2025
-8.7%
Insulet (PODD)
September 2025
-8.69%
Paychex (PAYX)
September 2025
-8.6%