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Navigating Interest Rates: Key Considerations for Pension Trustees
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Navigating Interest Rates: Key Considerations for Pension Trustees

John Tierney

Founder & CEO · April 7, 2026

Interest rates have a profound influence on pension fund management, affecting everything from liability valuations to fixed income returns and funding status calculations. For trustees, understanding how rate movements ripple through a pension fund's financial picture is essential to making informed decisions. While no one can predict the direction of rates with certainty, trustees can take steps to ensure their fund is positioned to manage a range of interest rate scenarios.

One of the most direct effects of interest rate changes is on the present value of a fund's liabilities. Pension obligations are long-duration commitments, meaning their present value is sensitive to the discount rate used in actuarial calculations. When rates decline, the present value of future benefit payments rises, which can widen a funding gap even if the fund's assets have not lost value. Conversely, rising rates tend to reduce the present value of liabilities, potentially improving funded status. Trustees benefit from understanding this dynamic clearly, as it can sometimes create the counterintuitive situation where strong asset returns coincide with a deteriorating funding position.

Liability-driven investing, often referred to as LDI, is one approach that pension funds may consider to help manage this interest rate sensitivity. The core idea behind LDI is to align a portion of the fund's assets more closely with the characteristics of its liabilities, typically through longer-duration fixed income holdings. This does not mean abandoning growth-oriented investments; rather, it involves structuring the portfolio so that a meaningful portion of assets moves in the same direction as liabilities when rates change. The appropriate level of liability hedging depends on a fund's specific circumstances, including its funded status, cash flow needs, and risk tolerance.

Asset allocation decisions in a changing rate environment require careful consideration of multiple factors. Fixed income portfolios that performed well during periods of declining rates may behave differently as rate dynamics shift. Trustees should work with their advisors to understand the duration, credit quality, and sector composition of their bond holdings, and to consider whether adjustments may be appropriate. At the same time, the role of return-seeking assets, such as equities and alternatives, remains important for funds that need to grow assets over time to meet future obligations.

Cash flow management is another area that deserves attention. Mature pension funds with a high ratio of retirees to active members often face significant ongoing benefit payment obligations. In a higher-rate environment, newly purchased fixed income securities may offer more attractive yields, which can support cash flow needs. However, funds that need to sell assets to meet benefit payments should be mindful of the potential for price declines in existing bond holdings when rates rise. A well-structured cash flow plan can help reduce the need to sell assets at inopportune times.

Communication between trustees, actuaries, and investment consultants is particularly important during periods of rate transition. Actuarial assumptions, including the discount rate, salary growth expectations, and mortality tables, should be reviewed regularly to ensure they reflect current conditions. Trustees should feel comfortable asking questions about how changes in assumptions affect the fund's projected liabilities and contribution requirements. Transparency in this process helps build confidence in the fund's overall management.

While the interest rate environment will always involve uncertainty, pension trustees who take a disciplined approach to understanding their fund's sensitivity to rate changes, and who work collaboratively with their professional advisors, are better equipped to make decisions that serve the long-term interests of plan participants. The goal is not to predict rates, but to build a framework that allows the fund to navigate a variety of economic conditions with resilience and prudence.

Securities and investment advisory services are services offered through qualified registered representatives of MML Investors Services LLC, Member SIPC. Supervisory Office: 330 Whitney Ave., Suite 600; Holyoke, MA 01040. Tel: 413-539-2000. Tierney Wealth is not a subsidiary or affiliate of MML Investors Services, LLC or its affiliated companies.