-

Best’s Special Report: Investment Income Reached Record Heights for US Property/Casualty Insurers in 2024

OLDWICK, N.J.--(BUSINESS WIRE)--The U.S. property/casualty insurance segment posted record-high investment income of $89 billion in 2024, a notable 20% year-over-year increase bolstered by the higher interest rate environment, according to a new AM Best report.

The Best’s Special Report, “Investment Income Reached Record Heights for P/C Insurers in 2024,” notes that the annual increase was driven by returns on bonds and cash and short-term investments. After over a decade of persistently low interest rates, the Federal Reserve raised rates by 425 basis points between 2022 and 2024, causing bond prices to fall below their carried values. However, the well-matched and shorter duration portfolios of most property/casualty insurers limited the overall impact. As interest rates rose, returns increased due to reinvestment into higher-yielding securities, boosting net investment income materially.

“As weather and catastrophe events increase and drive losses higher for some property/casualty insurers, investment income has become even more important to make up for poor underwriting results,” said Kaitlin Piasecki, industry research analyst, Industry Research and Analytics, AM Best.

With new money being reinvested into higher-yielding assets, the segment’s gross yield rose by 40 basis points to 3.66% in 2024. Bonds remain the largest asset class for property/casualty insurers, and the portfolio yield reached 4.1% in 2024, a record high in more than a decade. Overall portfolio allocations have fluctuated in recent years due to equity market volatility and increased cash and short-term investments; however, trends are generally driven by larger players, as Berkshire Hathaway accounted for nearly 40% of the segment’s invested assets in 2024.

“There has been a slight increase in private securities over the last decade,” said Jason Hopper, “Property/casualty insurers also continue to favor and find value in residential mortgage-backed securities over commercial mortgage-backed securities, with mortgage-backed securities accounting for 11% of the industry’s allocations, compared with 5% for commercial mortgage-backed securities.”

To access the full copy of this special report, please visit http://www3.ambest.com/bestweek/purchase.asp?record_code=358060.

For a look at the U.S. life/annuity industry’s 2024 investment results, please see the Best’s Special Report, “US Life/Annuity Insurers Embrace Alternatives and Mortgages in 2024,” see http://www3.ambest.com/bestweek/purchase.asp?record_code=355833.

AM Best is a global credit rating agency, news publisher and data analytics provider specializing in the insurance industry. Headquartered in the United States, the company does business in over 100 countries with regional offices in London, Amsterdam, Dubai, Hong Kong, Singapore and Mexico City. For more information, visit www.ambest.com.

Copyright © 2025 by A.M. Best Rating Services, Inc. and/or its affiliates. ALL RIGHTS RESERVED.

Contacts

Kaitlin Piasecki
Industry Research Analyst,
Industry Research and Analytics

+1 908 882 1896
kaitlin.piasecki@ambest.com

Jason Hopper
Associate Director,
Industry Research and Analytics

+1 908 882 2458
jason.hopper@ambest.com

Christopher Sharkey
Associate Director, Public Relations
+1 908 882 2310
christopher.sharkey@ambest.com

Al Slavin
Senior Public Relations Specialist
+1 908 882 2318
al.slavin@ambest.com

AM Best


Release Versions
Hashtags

Contacts

Kaitlin Piasecki
Industry Research Analyst,
Industry Research and Analytics

+1 908 882 1896
kaitlin.piasecki@ambest.com

Jason Hopper
Associate Director,
Industry Research and Analytics

+1 908 882 2458
jason.hopper@ambest.com

Christopher Sharkey
Associate Director, Public Relations
+1 908 882 2310
christopher.sharkey@ambest.com

Al Slavin
Senior Public Relations Specialist
+1 908 882 2318
al.slavin@ambest.com

Social Media Profiles
More News From AM Best

Best’s Special Report: US Property/Casualty Insurance Industry Sees Underwriting Income Nearly Triple to $61 Billion in 2025

OLDWICK, N.J.--(BUSINESS WIRE)--The U.S. property/casualty (P/C) industry recorded a $60.9 billion net underwriting gain in 2025, almost tripling the $22.1 billion posted in the previous year, according to a new AM Best report. These preliminary results are detailed in a new Best’s Special Report, titled, “First Look: 2025 US Property/Casualty Financial Results,” and the data is derived from companies’ annual statutory statements received as of March 9, representing an estimated 96% of the P/C...

AM Best Assigns Credit Ratings to GUNA Re

HONG KONG--(BUSINESS WIRE)--AM Best has assigned a Financial Strength Rating of A- (Excellent) and a Long-Term Issuer Credit Rating of “a-” (Excellent) to GUNA Re (Cayman Islands). The outlook assigned to these Credit Ratings (ratings) is stable. The ratings reflect GUNA Re’s balance sheet strength, which AM Best assesses as strong, as well as its adequate operating performance, neutral business profile and appropriate enterprise risk management. GUNA Re was established in February 2026 in the...

AM Best Affirms Credit Ratings of PanAsia Reinsurance Inc.

HONG KONG--(BUSINESS WIRE)--AM Best has affirmed the Financial Strength Rating of A- (Excellent) and the Long-Term Issuer Credit Rating of “a-” (Excellent) of PanAsia Reinsurance Inc. (PanAsia Re) (Hawaii). The outlook of these Credit Ratings (ratings) is stable. The ratings reflect PanAsia Re’s balance sheet strength, which AM Best assesses as very strong, as well as its adequate operating performance, limited business profile and appropriate enterprise risk management (ERM). The ratings also...
Back to Newsroom