The S-Curve

Welcome to The S-Curve

Now you will be able to receive the latest announcements, product updates, and our insights on the mortgage market in real time.

The name of the blog, the S-Curve, is a reflection of our logo and the central feature of our prepayment model. S-curves are seen in nature in many phenomenon, from population growth to prepayment and default models. Our first S-curve, in the early 1990s, used the arctangent function, then piece-wise linear functions, and evolved over time to be more complex and vary by FICO, loan size and LTV. This evolution encapsulates both the timeless nature of fundamental relationships and constant innovation to describe them better over time.

We hope you find the information useful and we look forward to your feedback.

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Blog - Latest
  • Leveraging Data and Analytics: Highlights from the IMN MSR Forum 2024

    Joni Baker

    Events

    Andrew Davidson & Co. Inc. (AD&Co) proudly sponsored the Information Management Network (IMN)’s 10th Annual Mortgage Servicing Rights (MSR) Forum, held November 21 - 22, 2024 at the New York Marriott at Brooklyn Bridge. Our servicing expert Richard Cooperstein moderated and I spoke on the panel “Leveraging Trended Data to Enhance Your MSR Portfolio’s Mortgage Prepayment and Credit Modeling.” This panel focused on enhanced consumer data, its impact on delinquencies and prepayments (as shown in our white paper), and the process to bring the data and analytics into decision-making.

    Other panels at the event discussed a variety of topics, including the interest rate outlook, macroeconomic factors, climate factors, and their effects on prepayments, escrow, originations, delinquencies, new versus seasoned MSRs, MSR supply and demand, and rate hedging strategies and functionality. The panel discussions underscored the need for a deeper understanding and management of the interest rate and credit risks embedded in the federal mortgage servicing asset. Recapture and the importance of good customer service were recurring themes throughout the conference.

    Cautious Optimism for the MSR Market

    The overall sentiment regarding MSR assets was a cautious optimism: Despite being a complex asset class, the MSR market remains strong, and people want to buy. Many panelists took the view that due to full employment, a strong GDP, and expectations about the economy and a large and increasing deficit, interest rates in 2025 would see at most a modest decrease before rising again. However, this view was not universally shared, with some pointing to a potential economic downturn and increased defaults being hinted at by delinquency trends in auto credit being close to pre-Covid levels, and the subset of Covid forbearance mortgages that will ultimately default.

    For borrowers who already have low mortgage rates, there is limited room for modification; it is interesting to note that one servicer mentioned having some mortgages in foreclosure even with low LTV. Meanwhile, some borrowers bought homes in 2023 hoping to ultimately refinance into lower rates, but the opportunity has not arisen (and might not anytime soon). Finally, due to climate factors and inflation, insurance in some areas is becoming increasingly unaffordable or unavailable. In some regions, such as Florida, some condominium owners are facing massive assessments. One servicer noted that with the current high home prices, most consumers facing high insurance increases can sell their homes. However, there is evidence that when insurance premiums rise to the level of 30-40% of principal and interest, delinquencies also begin to rise. AD&Co’s Climate Impact Suite (currently in beta testing) distinguishes between the effect of climate change on home prices (through Climate Conditioned HPA) and the effect of high premiums on borrower behavior (through Climate Conditioned LDM), with the first effect feeding into the second; if the CLTV remains low, high premiums lead to increased turnover, but if the CLTV becomes high, delinquencies increase.

    Uncertainty and the Importance of Prepayment Forecasting

    In general, and especially with the new administration coming in, uncertainty was a key theme throughout the forum. It was suggested more than once that the economy may have some curve balls. Regardless – and as always – the ability to forecast prepayment speeds is key for valuing MSR’s. Prepayments determine the total base fee collected on a mortgage, as well as the earnings on escrow and payment float, which have become larger and increasingly important components of MSR valuation due to higher interest rates.

    For current coupon mortgages, much depends on the interest rate forecast. For low-rate mortgages, however, it's important to understand the economics of turnover (especially when no rate incentive exists) and predict which borrowers are more likely to prepay at a low rate, such as 3%. The overall low prepayment rate among this set could potentially rise due to a pent-up demand to move, especially with more firms pushing for employees to return to the office.

    Many panelists spoke about recapture, which was a prominent theme of the conference: recapture refers to the situation in which the servicer retains the borrower by servicing the new loan as well. Some servicers account for recapture in their valuation, and some use models for predicting recapture rates. The necessity of providing excellent customer service arose in multiple panels as essential for increasing recapture and selling ancillary products while also reducing delinquencies and defaults.

    "Know Your Data and Your Portfolio"

    One panelist observed that, in the current environment, it is now more important than ever for servicers to “know your data and your portfolio”. The topic was addressed during the AD&Co-moderated panel “Leveraging Trended Data to Enhance Your MSR Portfolio’s Mortgage Prepayment and Credit Modeling”. David Doyle of Sagent first discussed some of the challenges in understanding the strengths and risks of potential MSR acquisitions, while Gauhar Turmuhambetova of BlackRock outlined the challenges of using dynamic credit bureau data in the valuation of securitized products. Bindiya Jain of Experian described the granular loan-level insights available on their platform and specifically within their mortgage performance dataset. Then I shared research that illustrates how Experian’s trended data attributes may be used to improve mortgage prepayment and delinquency forecasts beyond what may be inferred from a traditional credit score. I also demonstrated through AD&Co’s MSRKinetics application how these improved forecasts would affect the base fee and cost components of MSR valuation for sample GSE and FHA loans, as well as their weighted average lifetimes and duration profiles.

    Overall, IMN’s MSR forum provided a rich opportunity to engage with participants in the MSR industry, learn about their views and needs, and explore potential synergies.

Blog - Archives

The S-Curve Archives

  • Andrew Davidson

    Thoughts

    The growing prevalence of artificial intelligence in the mortgage industry is shining a new light on the human biases that have pervaded the industry since its inception. AI is meant to bring fairness and objectivity to mortgage decisions, but it can’t perform fairly if it was built on an unfair system.

  • AD&Co Marketing Team

    Products

    The LDM v3.0.2 library adds AutoLDM to the v3.0.1 library.

    Key benefits include:

  • AD&Co Marketing Team

    Events
    We at Andrew Davidson & Co., Inc. (AD&Co) are once again thrilled to celebrate Pride Month, especially the contributions of LGBTQ professionals in the field of finance including affordable housing policy and the GSEs. This year, in addition to celebrating, we are also paying increased attention to the challenges that LGBTQ individuals face, particularly around issues of housing. Our pride in our LGBTQ staff and community sits alongside our concern about discriminatory lending practices, including in mortgages. As of February 2021, for the first time, lesbian, gay, bisexual, transgender, queer, and questioning (LGBTQ) Americans will be protected from housing discrimination under the Fair Housing Act. 
  • Richard Cooperstein

    News

    For several years, AD&Co has tracked the total rate of return (TRR) performance of the GSE CAS and STACR CRT in its U.S. Mortgage High-Yield Indices. The AD&Co Mid-Tier index constitutes a broad market measure of the TRR performance of GSE CRT. The related sub-indices segregate the CRT market into 4 index Tiers by attachment point, reflective of the credit exposure of the various classes of underlying CRT ranging from B to M1.

  • AD&Co Marketing Team

    Events
    We at Andrew Davidson & Co., Inc. (AD&Co) stand in solidarity with the Asian community and speak out against the xenophobic ignorance that has led to increased racist attacks against Asians. We protest against these hate crimes. This is a time to celebrate the richness that we have gained from the diversity of the Asian culture. We pledge to support the heritage that is part of what makes us American. 
  • AD&Co Marketing Team

    Events

    What does it mean to be mentally healthy? The answer is different for everyone. With all the extra anxiety that many of us have experienced since 2020, whether from uncertainty about COVID-19 or from other experiences that may be new to us, it’s important to acknowledge that it’s alright to not feel alright. Fortunately, there are numerous resources that are available locally, nationally, and in some cases through your workplace or benefits package. We might start by finding out what makes us feel better.

  • AD&Co Marketing Team

    Products

    Today marks the publication of Chris Widman's Quantitative Perspective, a comprehensive article on the newest member of our LoanDynamics suite, the Auto LoanDynamics Model. Auto LDM will be integrated into vendor systems and AD&Co tools, allowing users to perform analysis on auto loan and ABS positions.

  • AD&Co Marketing Team

    Events
    Since 1970, April 22nd has been the annual day to appreciate our planet and recognize the importance of protecting it.  But more and more, we realize that everyday needs to be Earth Day, and that we need to take better care of the place that gives us life.
  • AD&Co Marketing Team

    Thoughts

    To seek "causes" of poverty in this way is to enter an intellectual dead end because poverty has no causes. Only prosperity has causes. – Jane Jacobs, Activist and Author

  • AD&Co Marketing Team

    Events

    CRTcast, a new podcast series under Freddie Mac’s Home Starts Here programming, focuses on credit risk transfer (CRT) and it’s three spokes: securities, (re)insurance and mortgage insurance. Freddie Mac leadership together with CRT industry experts cover current and relevant topics.