In the first quarter of 2026, the Thornburg Limited Term Income Portfolio (I share class) demonstrated a notable performance, achieving a return of 0.35%. This figure surpassed the Bloomberg Intermediate U.S. Government/Credit Index by 37 basis points, highlighting the portfolio's effective management strategies during a period marked by significant geopolitical shifts and fluctuating market conditions. The success was largely attributed to astute security selection within highly-rated AAA and BBB credit issues, which each contributed positively to the portfolio's overall returns. Furthermore, the portfolio adopted a cautious stance by maintaining an average duration of 3.29, notably shorter than the index's 3.71, a strategic move designed to navigate the challenges posed by rising interest rates in a volatile global landscape.

Details of the Q1 2026 Portfolio Performance and Market Outlook

The first quarter of 2026 witnessed a dynamic U.S. financial market, profoundly influenced by escalating geopolitical tensions, particularly the conflict in the Middle East involving Iran. This conflict led to considerable disruptions in global energy markets, setting a challenging backdrop for fixed income investments. Despite these headwinds, the Thornburg Limited Term Income Portfolio's performance was resilient. The portfolio's strategic allocation to high-quality credit, specifically within the AAA and BBB categories, proved instrumental. Each of these segments contributed 7 basis points to the portfolio's outperformance, underscoring the benefits of meticulous credit analysis and selection. Furthermore, the decision to keep the portfolio's average duration at 3.29, below the benchmark's 3.71, helped mitigate the impact of rising rates that were directly linked to the geopolitical unrest. This agile duration management positioned the portfolio advantageously against market volatility. Interestingly, during the initial phase of the Middle East conflict, high-yield credit spreads tightened to historically low levels, approximately 250 basis points over Treasuries by mid-January. This market anomaly presented both opportunities and risks. The portfolio's underlying investment philosophy emphasizes the generation of steady income streams, prioritizing high-quality assets and securitized products. This approach avoids excessive exposure to lower-quality credit, favoring assets that offer consistent carry over those dependent on further spread compression. The management team maintained a disciplined approach, ready to capitalize on market dislocations while remaining vigilant against undue risks in a complex economic environment.

This quarter's results underscore the importance of a well-defined investment strategy that balances income generation with risk management, especially in an unpredictable global economic climate. The portfolio's ability to outperform its benchmark amidst geopolitical instability provides a valuable lesson in the resilience of a carefully constructed, quality-focused fixed income allocation. Investors might draw inspiration from this proactive and disciplined approach, highlighting that cautious positioning and selective investment can lead to favorable outcomes even when broader market conditions are challenging.