PennyMac Financial Services, Inc. is a specialty financial services firm. The Company conducts business in three segments: production, servicing (together, production and servicing comprise its mortgage banking activities) and investment management. Production segment performs mortgage loan origination, acquisition and sale activities. Servicing segment performs mortgage loan servicing for its own account and for others, including for PennyMac Mortgage Investment Trust (PMT). Investment management segment represents its investment management activities, which include the activities associated with investment asset acquisitions and dispositions, such as sourcing, due diligence, negotiation and settlement; managing correspondent production activities for PMT; and managing the acquired investments for PMT. Its primary subsidiaries are: PNMAC Capital Management, LLC, PennyMac Loan Services, LLC and PNMAC Opportunity Fund Associates, LLC.