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US Private Families Should Revisit How Munis Fit Within a Broader Diversification Strategy

Reported by Cambridgeassociates
Apr 10, 2026· 2 min read
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Key Takeaways
  • • Cambridge Associates recommends that US private families maintain municipal bonds as the core fixed-income allocation for equity risk diversification, while becoming more selective about allocations to cash, Treasuries, and other taxable fixed income instruments.
  • • Short-term municipal bonds currently offer tax-exempt yields in the 3–4% range, which translate into meaningfully higher taxable equivalent yields for high-net-worth investors when federal, state, and local taxes are factored into after-tax returns.
  • • Municipal bond yields are near the higher end of their post-financial crisis range with relatively low interest rate sensitivity and solid underlying credit fundamentals, positioning them as a compelling alternative to cash for investors seeking flexibility while maintaining tax efficiency.
  • • Tax season analysis reveals that for investors in higher tax brackets, the tax-exempt income generated by munis materially improves outcomes compared with taxable alternatives such as Treasuries or corporate bonds on an after-tax basis.
Summary
Cambridge Associates, a global investment firm with 50+ years of institutional investing experience, recommends that US private families revisit their diversification strategies with a focus on municipal bonds' critical role in managing equity risk exposure. According to TJ Scavone, Senior Investment Director in the Capital Markets Research Group at Cambridge Associates, and Katherine Armstrong, Managing Director for the Private Client Practice, families should continue anchoring the equity-risk diversification portion of their portfolios with municipal bonds while exercising greater selectivity regarding cash, Treasury, and taxable fixed-income allocations.

The case for municipal bonds is strengthened by current market conditions and tax efficiency considerations. Short-term municipal yields presently range between 3–4%, offering investors a tax-exempt income stream that, when converted to taxable equivalent yields, provides significantly higher real returns for high-income investors compared with Treasury bills or other taxable fixed-income instruments. This tax-efficiency advantage becomes particularly acute when combined with federal, state, and local tax obligations—a reality sharpened during tax season when investors reassess portfolio income sources and overall efficiency.

Municipal bonds currently benefit from favorable technical characteristics: yields remain near the upper end of their post-financial crisis range, credit fundamentals underlying the muni market remain solid, and short-term munis exhibit low sensitivity to interest rate fluctuations. These features position municipal bonds as an attractive alternative to cash positions, which have benefited from elevated short-term rates but lack the tax-efficiency advantages munis provide. For investors navigating persistent market volatility and seeking to maintain portfolio flexibility without sacrificing returns, the strategic reallocation from cash into short-term municipals can materially enhance after-tax outcomes while maintaining the diversification properties necessary to offset equity exposure.

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Cambridgeassociates US Private Families Should Revisit How Munis Fit Within a Broader Diversification Strategy