
Spreads are near historic lows, limiting compensation for risk. Learn why selectivity, quality, and flexibility matter in today’s credit environment.
Tight Credit Spreads Shift the Risk Reward Tradeoff
Early this year, corporate credit spreads narrowed to historically tight levels. Investment-grade spreads declined to roughly +71 basis points, their tightest level since 1998, while high-yield spreads fell to approximately +250 basis points, levels last seen ahead of the 2007 cycle peak. Although spreads widened briefly amid recent geopolitical volatility, that move proved short-lived. By the end of April, both investment-grade and high-yield spreads had retraced and remained near the lowest percentiles of their historical ranges.
This backdrop matters because while all-in yields remain attractive, spreads at these levels have historically offered limited compensation for incremental credit risk. Starting points like today’s have often translated into weak or even negative forward excess returns over the subsequent 12 months. The challenge is one of imbalance. Spreads have limited room to tighten further, yet even modest economic softening, policy uncertainty, or renewed volatility could lead to meaningful spread widening and corresponding price declines.
Why Tight Spreads Change the Risk Profile
Tight spreads often reflect strong investor confidence and a benign economic outlook. However, they also leave little margin for error. When compensation for credit risk is compressed, the return profile becomes increasingly asymmetric. Investors may collect income if conditions remain favorable, but they face disproportionate downside if fundamentals deteriorate or volatility resurfaces.
As shown in the chart below, historically tight spread environments have been followed by weaker forward excess returns, particularly in high yield. In this context, excess return refers to performance above comparable Treasury securities, a useful measure of whether investors are being adequately compensated for taking credit risk. When excess returns are limited or negative, income alone may not fully offset potential price volatility.
Current Spread Levels Do Not Compensate Investors for Risk
Investment grade credit spreads under 90 bps and high yield spreads under 300 bps have historically translated to negative excess returns.
Source: Bloomberg as of 31 March 2026.
*Note: Data represents median forward 12m excess returns for spreads daily back to 2000.
Implications for Portfolio Positioning
In environments like this, we believe discipline becomes especially important. Rather than broadly reaching for yield, investors may be better served by emphasizing higher-quality opportunities where balance sheets are more resilient and downside risks are better understood. Maintaining flexibility also matters. Tight spreads can unwind quickly, and the ability to respond to market dislocations may create opportunities to add risk at more attractive entry points.
This approach reflects our broader philosophy toward income investing. Generating income remains important, but not at the expense of taking uncompensated risk. When spreads are tight and the margin for error is thin, selectivity, quality, and risk control take precedence over maximizing yield.
A Risk-Aware Income Mindset
Periods like today favor patience and perspective. While strong fundamentals may persist for some time, history suggests that investors should be cautious about assuming favorable conditions will continue indefinitely. By focusing on capital preservation, maintaining flexibility, and avoiding areas where downside risks outweigh incremental income, investors can position portfolios more defensively while remaining prepared to act when valuations become more compelling.
Discover more about:
More Insights
Equity Income Builder Fund Update: Staying Grounded in Fundamentals
Thornburg Income Builder Opportunities Trust Announces Distribution
Beyond the Benchmark: Finding Global Opportunities
Is This a “Mic Drop” Moment for Private Credit? What Actually Matters Now
Thornburg Investment Income Builder Fund – 1st Quarter Update 2026

