Security Midwest Bancorp, Inc. operates as the bank holding company for Security Bank, s.b. that provides various financial products and services in Illinois. It offers a range of deposit accounts, including demand deposit accounts, savings accounts, money market accounts and certificate of deposit accounts. The company also provides lending products, such as one-to four-family residential real estate loans, multifamily real estate, commercial real estate loans, and commercial and industrial loans, as well as multi-family residential real estate loans, construction and development loans, farmland loans, commercial and industrial, and consumer loans. In addition, it invests in debt securities, such as mortgage-backed securities and collateralized mortgage obligations, municipal bonds, and the U.S. government and agency securities; and sells insurance on an agency basis and related products, as well as offers brokerage services. Further, it offers personal checking and saving accounts; youth accounts; credit and debit card; safe deposit boxes; security cents services; digital and mobile banking; online bill pay; and small business loans, as well as merchant services. Security Midwest Bancorp, Inc. was incorporated in 2024 and is based in Springfield, Illinois.