PennyMac Financial Services, Inc., through its subsidiaries, engages in the mortgage banking and investment management activities in the United States. It operates through three segments: Loan Production, Loan Servicing, and Investment Management. The Loan Production segment is involved in the origination, acquisition, and sale of mortgage loans. This segment originates first-lien residential conventional, government-insured or guaranteed mortgage loans, and home equity loans. The Loan Servicing segment engages in the servicing of newly originated mortgage loans, and execution and management of early buyout transactions and servicing of loans. It performs loan administration, collection, and default management activities, including the collection and remittance of loan payments; response to customer inquiries; accounting for principal and interest; holding custodial funds for the payment of property taxes and insurance premiums; counseling delinquent borrowers; and supervising foreclos