Daily Digest — September 15, 2026

Just filed

MFB Bancorp

No ticker yet · Second-step mutual-to-stock conversion · filed to raise up to $10.35 million · exchange TBD

Mutual Federal Bank is a 120-year-old single-branch Chicago savings institution filing to complete its conversion to full stock form — and the valuation the appraisal assigns it captures the tension in one pair of numbers: a 44.9% discount to peers on price-to-tangible-book, alongside a 130.7% premium to those same peers on price-to-core-earnings. The discount exists because the bank earns very little against its book.

The earnings record bears that out. FY2024 net income was negative $330,000; FY2025 swung back to profit, with net income recovering $668,000 year-over-year on a 9.6% rise in net interest income — but the first half of 2026 produced only $133,000 in operating cash flow, and net interest income slipped 1.3% versus the prior-year period. The institution carries $97.2 million in total assets and a loan book that is 100.0% real-estate secured, concentrated 78.1% in one-to-four family mortgages — almost all within Cook County, which has shed 4.6% of its population since 2020 and runs a 5.7% unemployment rate against a national 4.2%. Non-performing assets are 1.0% of total assets and the allowance covers non-performing loans at 137.5% — credit quality is not the immediate concern, but the demographic and economic backdrop for the collateral is soft.

The offering is structurally small and niche: the mutual holding company currently controls 77.4% of shares, there are only 47 shareholders of record pre-conversion, and regulatory anti-takeover provisions prohibit acquisitions for three years post-conversion. The thrift-conversion trade — buy at a book discount, wait for a takeout premium — is locked for the near term by design. Terms are not yet final; this is a registration, not a priced deal.