Bank Mutual Corporation is a savings and loan holding company. The Company owns Bank Mutual (the Bank), a federally-chartered savings bank. The Company operates through community banking segment. The Bank is engaged in the business of community banking, which includes attracting deposits from and making loans to the general public and private businesses, as well as governmental and non-profit entities. In addition to deposits, the Bank obtains funds through borrowings from the Federal Home Loan Bank (FHLB) of Chicago. These funding sources are used to originate loans, including commercial and industrial loans, multi-family residential loans, non-residential commercial real estate loans, one- to four-family loans, home equity loans and other consumer loans. The Bank also purchases and/or participates in loans from third-party financial institutions and is a seller of residential loans in the secondary market. It also invests in mortgage-related and other investment securities.