OptimumBank Holdings, Inc. operates as the bank holding company for OptimumBank that provides various consumer and commercial banking services to individuals and businesses. The company accepts demand interest-bearing and noninterest-bearing, savings, money market, and NOW accounts, as well as time deposits, wire transfers, ACH services, and certificates of deposit. It also offers multi-family real estate, residential and commercial real estate, and land and construction loans; commercial loans for working capital purposes or acquiring equipment, inventory, and furniture; and consumer loans for various purposes, including purchases of automobiles, recreational vehicles, boats, home improvements, lines of credit, personal, and deposit account collateralized loans.