Old National (ONB), First Midwest (FMBI) Merger Gets Fed Nod Posted byZacks Equity Research January 31, 2022 Leave a comment on Old National (ONB), First Midwest (FMBI) Merger Gets Fed Nod Old National (ONB), First Midwest (FMBI) merger receives the Fed’s approval. This will expand the combined companies’ commercial banking capabilities, retail footprint and wealth platform.