EXECUTIVE SUMMARY This article examines the enterprise profile of U.S. workers’ compensation (WC) insurers and evaluates their investment performance relative to the broader U.S. property and casualty (P&C) industry. WC insurers tend to carry more invested assets than other P&C insurers and typically exhibit lower premium-to-surplus ratios, reflecting the longer-tailed nature of the WC business. They have adopted a more conservative investment approach, reflected by lower allocations to risk assets, which has resulted in net investment income (%) trailing that of the broader P&C industry over the past decade. Within fixed income portfolios, despite maintaining comparable average credit quality and longer duration relative to the P&C industry, the WC composite generated lower book yields. A focused assessment of sector allocations and duration/quality strategies may reveal opportunities to enhance fixed income portfolio performance. Notably, WC insurers that assumed greater investment risk, particularly larger firms, generally achieved higher book yields, suggesting that selective risk-taking may serve as a lever for improving investment outcomes.
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