Redwood Trust, Inc., through its subsidiaries, focuses on investing in mortgage and other real estate related assets. The Company is engaged in mortgage banking activities. The Company operates through three segments: Residential Investments, Residential Mortgage Banking and Commercial. The Residential Investments segment includes a portfolio of investments in residential mortgage-backed securities (RMBS) retained from its Sequoia securitizations. The Residential Mortgage Banking segment consists of operating a mortgage loan conduit that acquires residential loans from third-party originators for subsequent sale, securitization, or transfer to its investment portfolio. Its Commercial segment consists of investments in multi-family securities and commercial mortgage-backed securities, as well as a remaining commercial loan investment following the sale of the remainder of its commercial mezzanine loan portfolio.