Agency Mortgage-Backed Securities: Mortgage Refis Rise on Lower Rates

Prepayment risk is contained for now, but the near-term technical picture remains challenging.

June 17, 2019

This Agency Mortgage-Backed Securities sector report is excerpted from the Second Quarter 2019 Fixed-Income Outlook.

Agency MBS underperformed major spread sectors in the first quarter due to lower rates, a flatter 2s/10s yield curve, and lower implied interest rate volatility. The Bloomberg Barclays U.S. MBS index posted a 2.2 percent total return for the quarter. Option-adjusted spreads were unchanged over the quarter while nominal spreads tightened.

The MBA Refinancing Index Rose Sharply in Q1

Prepayment speeds have finally started to rise for residential MBS with the move lower in mortgage rates this year. The MBA refinancing index, a leading indicator of prepayment volumes, has risen sharply and driven our focus back on mortgage refinancing risk.

The MBA Refinancing Index Rose Sharply in Q1

Source: Guggenheim Investments, Credit Suisse, Mortgage Bankers Association. Data as of 6.10.2019.

Mortgage Refinancing Exposure in Rate Shifts

While data for the next few months will likely show increases in prepayment speeds, we view overall risk as being contained at the current level of rates. The majority of mortgages were originated at lower rates, and only 25 percent of them have enough rate incentive right now to refinance.

Mortgage Refinancing Exposure in Rate Shifts

Source: Guggenheim Investments, Credit Suisse. Data as of 6.10.2019.

Mortgage rates would need to move lower by more than 20 basis points for the majority of mortgages to be in the “refinance zone.” Additionally, most mortgages were originated before 2018 and have seen lower rates multiple times and have not prepaid, indicating they may not be as responsive at these mortgage rates. Therefore, we view refinancing risk to be limited to mortgages originated more recently at higher rates.

Valuations look reasonable, although residential MBS has moved closer to the tight end of the range. Low interest rate volatility has supported the sector this year, but we view this environment as unsustainable. The near-term technical picture remains challenging due the ongoing decline in Fed holdings and growing supply from the seasonally stronger housing market. We continue to favor investments where either the collateral or structure offers some cash flow stability at reasonable spreads. Accordingly, we find select subsectors attractively priced in the current environment, including longer-maturity Agency multifamily securities, better call-protected pools, and some collateralized mortgage obligation structures. We expect these investments to perform well in scenarios where interest rate volatility rises, interest rates decline sharply, or the Fed continues down the path of reducing its MBS holdings.

—Aditya Agrawal, CFA, Director; Louis Pacilio, CFA, Vice President


Important Notices and Disclosures

This article is distributed for informational purposes only and should not be considered as investing advice or a recommendation of any particular security, strategy or investment product. It contains opinions of the authors but not necessarily those of Guggenheim Partners or its subsidiaries. The authors’ opinions are subject to change without notice. Information contained herein has been obtained from sources believed to be reliable, but are not assured as to accuracy. Past performance is no guarantee of future results.

Investing involves risk. In general, the value of fixed-income securities fall when interest rates rise. High-yield securities present more liquidity and credit risk than investment grade bonds and may be subject to greater volatility. Asset-backed securities, including mortgage-backed securities, may have structures that make their reaction to interest rates and other factors difficult to predict, making their prices volatile and they are subject to liquidity risk. Investments in floating rate senior secured syndicated bank loans and other floating rate securities involve special types of risks, including credit risk, interest rate risk, liquidity risk and prepayment risk. Guggenheim Investments represents the following affiliated investment management businesses of Guggenheim Partners, LLC: Guggenheim Partners Investment Management, LLC, Security Investors, LLC, Guggenheim Funds Investment Advisors, LLC, Guggenheim Funds Distributors, LLC, GS GAMMA Advisors, LLC, Guggenheim Partners Europe Limited, and Guggenheim Partners India Management.

©2019, Guggenheim Partners, LLC. No part of this article may be reproduced in any form, or referred to in any other publication, without express written permission of Guggenheim Partners, LLC.


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