Why is Union Bank falling?

AVIDBANK 13 BURKE & HERBERT B&TC 5 DBA TAB BANK 19 FARMERS National Association National Bank OF DANVILLE 4 First Bank of Berne 14 First National Bank of Absecon 3 First National Bank of Ava 1 First National Bank, Taylorville 12 Grand Bank 24 GROVE B&TC 6 Gulfside Bank 17 Hanover Community Bank 4 Jim Thorpe Neighborhood Bank 5 Jones Bank 10 MERCANTILE Bank 13 MinnStar Bank, National Association 4 Pavillion Bank 1 Town & Country Bank 2 Valor Bank 9 Western National Bank, Cass Lake 2