JPMorgan Chase (JPM) had the lowest return in October 1990 by a US stock in the Financial Sector, returning -34.7%.

ASSET	MONTH	% RETURN
JPMorgan Chase (JPM)	October 1990	-34.68%
PNC Financial Services (PNC)	October 1990	-30.85%
Stewart Information Services (STC)	October 1990	-30.77%
Cullen/Frost Bankers (CFR)	October 1990	-29.67%
Lincoln National (LNC)	October 1990	-29.29%
American Financial (AFG)	October 1990	-27.48%
Dominari (DOMH)	October 1990	-26.09%
Webster Financial (WBS)	October 1990	-25.22%
Independent Bank (INDB)	October 1990	-23.08%
Bank of America (BAC)	October 1990	-21.59%
Atlantic American (AAME)	October 1990	-20%
SLM (SLM)	October 1990	-19.78%
State Street (STT)	October 1990	-19.65%
Bank of New York Mellon (BK)	October 1990	-19.17%
Brown & Brown (BRO)	October 1990	-18.6%
Washington Trust Bancorp (WASH)	October 1990	-18.18%
Newtek Business Services (NEWT)	October 1990	-16.67%
T Rowe Price (TROW)	October 1990	-16.66%
American Express (AXP)	October 1990	-15.64%
Old Republic International (ORI)	October 1990	-15.22%
Markel (MKL)	October 1990	-15%
Heritage Global (HGBL)	October 1990	-14.29%
Security National Financial (SNFCA)	October 1990	-14.28%
Mercury General (MCY)	October 1990	-13.97%
Donegal Group B (DGICB)	October 1990	-13.49%