Stable Value Funds 101: A Beginner's Guide

For investors looking to preserve their capital for retirement, education, or other defined purposes, there's a wide range of conservative investments to consider like money market funds, Treasuries, certificates of deposit (CDs), and fixed annuities. The list is long and, frankly, confusing—particularly for novice investors. While all these investments are designed to limit risk and reduce volatility, they don't work the same way or serve the same purpose as each other.

Stable value funds are a slightly more under-the-radar part of this landscape, but they're well worth considering. Understanding how these funds work—and their benefits and trade-offs—is critical for investors deciding how to manage their retirement or education savings strategies.

Stable value funds are low-risk investments that are specifically designed to be used in tax-advantaged retirement and education savings plans, such as 401(k)s, 403(b)s, and 529 accounts. The funds invest in diversified portfolios of high-quality bonds that are then paired with insurance-based contracts. The goals of these funds are simple: to preserve capital, provide consistent returns, and help lessen the impact of market price swings and interest rate fluctuations.

Specifically, at their core, stable value funds hold baskets of short-to-intermediate-term fixed income securities. These include corporate bonds, mortgage-backed securities, Treasuries, agency bonds, and more. The specific portfolio mix varies by fund, but all are designed to support stable, predictable returns and protect investors' savings.

On top of stable funds' core strategy, there's a built-in insurance component—meant to provide additional stability and protection—that comes in several forms. Some stable value funds use guaranteed investment contracts (GICs) or general account contracts. These essentially allow investors to deposit their money with insurers, who then—backed by all or part of their broader balance sheet—provide a fixed return for a set period. Other funds rely on wrap contracts that act like a form of insurance on a fund's assets. No matter which type of insurance component is used, the goal is always to allow investors, subject to plan rules, to move money in or out of the fund at book value rather than market value, insulating them from bond market volatility.

Stable value funds' returns are then applied through a crediting rate, which determines how much interest is credited to investors over time. The crediting rate is periodically reset, typically on an annual basis, and is influenced by the yield of the underlying bond portfolio, interest rates, terms of the insurance contract, and other factors. 

For conservative investors looking for an extra layer of security to help protect their capital, stable value funds can be an attractive investment. However, like any other retirement plan investment, these funds charge fees, and each fund has its own rules that impact withdrawals, transfers, and more. Prospective investors should ensure they understand how the stable value fund they're considering operates before investing.

Investors often look to stable value funds to provide a solid, low-risk foundation for their diversified portfolios. As previously mentioned, above all, these funds are designed to protect investors' principal and provide reliable returns. This makes them particularly appealing for investors nearing retirement and can't afford sharp downturns in their portfolios.

Because stable value funds' returns come from a diverse mix of high-quality bonds, which are wrapped with insurance contracts, they can provide dependable performance, even as market conditions and interest rates change. This reduced volatility can help investors avoid making emotionally driven decisions that can lead to outsized losses and hinder long-term retirement or savings goals. Remember, losses are asymmetric, meaning the percentage gain required to recover from a loss is always higher than the percentage loss itself. A key strength of stable value funds is that they seek to protect against these losses.

While stable value funds are designed to preserve capital and reduce volatility, that stability comes with trade-offs that investors should consider:

• Reduced long-term return potential. Because stable value funds focus on loss protection and stability during market downturns, they generally offer limited upside potential, particularly when compared with equities or higher-risk fixed income investments.
• Expense ratios. Expense ratios—a fund's operating expenses expressed as a percentage of average net assets—vary by fund. These fees can reduce net returns over time.
• Inflation risk. During periods of elevated inflation, stable value funds' low, steady yields may not keep pace with rising consumer prices, leading to negative real returns.
• Shifting crediting rates. Crediting rates tend to follow market interest rate trends but change more gradually over time. This can cause stable value funds' returns to lag cash alternatives in rising-rate environments. However, they may outperform these alternatives when rates are low or declining.
• Withdrawal restrictions. Stable value funds typically allow daily withdrawals and other transfers. However, they also often include exit provisions that can limit large immediate withdrawals and prevent investors from moving money to competing funds without a waiting period.

Investors looking for ways to protect their capital have a few choices beyond stable value funds, and it's well worth considering the pros and cons of each. Money market funds are perhaps the most popular choice. These funds also offer steady returns, but they have more direct exposure to changes in interest rates. This can be a benefit compared to stable value funds when rates are rising, but a drawback when rates are falling.

CDs offer a fixed return if held to maturity. These can be practical for investors who want to protect their savings, provided they don't need access to their money to fund retirement or education spending.

Treasuries are another common conservative investment option. Like money market funds, they can offer more upside when interest rates are elevated, and they trade freely on the open market—but investors will have to cope with daily price fluctuations and lower returns when interest rates are depressed.

Over longer periods, the differences between these conservative investments can lead to distinct risk-and-return outcomes.

Deciding whether to invest in stable value funds, and then selecting the right fund, can be a challenge. Here are a few tips to help get the ball rolling:

• Consider investment time horizon and income needs. Remember that stable value funds tend to be most appropriate for investors with shorter investment time horizons who need to withdraw money on an ongoing basis.
• Evaluate how the fund fits in a diversified portfolio. These funds are often used as a stable, conservative pillar alongside other income-producing assets and stocks. It's critical to assess whether stable value funds improve a portfolio's overall return potential and risk balance rather than viewing them in isolation.
• Remember that not all stable value funds are created equal. Make sure to compare funds' fee structures, holdings, past performance, crediting rates, and other terms and conditions. To do this, consider reviewing each fund's fact sheet, quarterly statements, and disclosure documents.
• Understand plan-specific rules and provisions. Stable value funds have different rules regarding withdrawal limitations and exit provisions. Be sure to review these rules to avoid any unwanted surprises.
• Note: Crediting rates aren't set in stone. High crediting rates can be attractive, but it's important to review how often a fund's rate resets and how it has behaved in different interest rate environments in the past. Higher doesn't always mean better.