Introduction StoryBook now supports GSE RPL MBS: issuance and prepayment history are available on both RPL loans and pools. The Reperforming Loan (RPL, Re-Performing) mortgage-backed securities (MBS) sector securitizes loans that were once deeply delinquent and bought out of pools but begin performing again either because the borrower was able to recover from a financial shock after receiving some form of temporary relief from their existing schedule of mortgage payments, or

Updated: 12/17/2025 Ginnie Mae (GNMA) does not report seller or servicer information for its pools or loans; instead, associated with each GNMA pool/loan is the notion of an Issuer . Indeed, GNMA’s conception of the Issuer role doesn’t map straightforwardly to the standard functions performed by the sellers and servicers associated with GSE pools since the Issuer’s responsibilities are prescribed to encompass those of the mortgage owner, the pool issuer, and the servicer. [1

Tracking MBS Issuance over extended time frames spanning months or years provides an invaluable perspective into mortgage market supply-side dynamics, the evolving characteristics of mortgage borrowers, and the relative share of major mortgage market participants. To some extent, the same insights can be extracted over shorter time scales such as a daily frequency with the emphasis shifting to analyzing trading flows – the likely characteristics of the TBA deliverable, which

Introduction Payoff data on MBS cohorts that is accumulated for each day of the servicer reporting cycle associated with a factor date...

Conforming Mortgage Rates in StoryBook The mortgage rates used in StoryBook are based on the most reliable and long-running survey of primary mortgage rates for conforming loans -- Freddie Mac's Primary Mortgage Market Survey (PMMS) (https://www.freddiemac.com/pmms/). Each week, from April 1971 until November 2022, PMMS was based on surveying lenders on the rates and discount/origination points for their most popular 30-year fixed-rate, 15-year fixed-rate, 5/1 Hybrid adjustab

Introduction In addition to providing pool-level A factors on GNMA MBS pools on the 4th business day (BD4) of each month, StoryBook also...

Background An ET loan corresponds to a loan modification that lowers a borrower's monthly payments by restructuring an existing 30-year...

LLPA Changes and Mortgage Rates On January 5th, 2022, the GSEs released a new round of loan-level pricing adjustments (LLPAs) targeted at...

Introduction One way of assessing the liquidity for a particular MBS coupon is to calculate its float, the amount that is free to trade....

Introduction It's hardly an overstatement to say that the institutional type of mortgage originators and servicers is playing a crucial...

Introduction to the Cash Window There are two methods for securitizing loans in Agency GSE MBS: swapping loans for a security (Swap) or...

As widely anticipated, the delinquency rate on mortgage loans jumped dramatically in May factor date data across the different Agencies...

Introduction The economic destruction unleashed by the COVID-19 pandemic has lead to a surge in the unemployment rate which in turn will...

Property Valuation Data from the GSEs Among the relief measures rolled out by housing regulators in responding to the coronavirus...

The Problem The US has one of the largest and most developed mortgage markets in the world with nearly two-thirds of all households...