Two Harbors Investment Corp is a real estate investment trust primarily focused on investing in, financing, and managing residential mortgage-backed securities, or RMBS; residential mortgage loans; mortgage servicing rights; and commercialreal estate. The majority of the company's investment portfolio is split between agency RMBS purchased from government-sponsored enterprises and nonagency RMBS. Two Harbors derives nearly all of its revenue in the form of interest income collected from its investments. Most of this income is generated by available-for-sale securities, while residential mortgage loans held for investment in securitization trusts also contribute a sizable amount.