AM Best-rated U.S. P&C mutual insurers doubled net income to $42.6 billion in 2025, helped by a $14.8 billion underwriting gain and strong investment income.
Insurance Market Share Reports & Industry Trends

Best’s Special Report: US Property/Casualty Industry Nearly Tripled Net Underwriting Income in First-Half 2026
U.S. property/casualty insurers recorded $31.2 billion in net underwriting income during the first half of 2026, nearly triple the prior-year result, as the industry’s combined ratio improved four points to 92.5.
5th Look 2026: Massachusetts Private Passenger Auto Market Share Report
Commerce remains Massachusetts’ largest private passenger auto insurer through June 2026 with an 18.38% market share.
NAIC: Northeast Homeowners Market Competitive Though Nonrenewals Jump 147%
NAIC data show Northeast homeowners premiums rose 55% since 2018 while nonrenewals surged, even as the region remained highly competitive.
Chubb Q2 Net Profit Down 3.8% as Combined Ratio Improves
Chubb reported strong Q2 2026 earnings while reducing underpriced property business and warning casualty pricing is failing to keep pace with rising loss costs.