NAIC Releases 2018 Property-Casualty Insurer Market Share Data

The National Association of Insurance Commissioners (NAIC) recently released two sets of data on life/fraternal and property-casualty insurers. The reports provide market share information indicating the degree of market concentration in lines of business and identify leading insurance writers.

The 2018 market share data include countrywide direct written premium for the top 25 groups and companies as reported on the state page of the annual financial statement for insurers that report to the NAIC. A few property-casualty report highlights are as follows.

• With 96.55 percent of property-casualty insurance companies reporting to date, direct premiums written for all lines of business are $670,262,757,463.
• The top 10 property-casualty companies reporting to date have a cumulative market share of 47.79 percent.
• Total private passenger auto insurance has the largest amount of direct premiums written reported as of March 4 at $244,455,312,825.

The property-casualty report contains cumulative market share data for the following lines of business: personal auto, commercial auto, workers compensation, medical professional liability, homeowners, and other liability (excluding auto liability) insurance.

For property-casualty, the top 5 ranking insurers in terms of direct premiums written for commercial auto, workers compensation, medical professional liability, and other liability are as follows.

The reports will be refreshed each Monday throughout March. The complete 2018 Market Share Reports for Life/Fraternal Groups and Companies and 2018 Market Share Reports for Property/Casualty Groups and Companies will be available this summer and contain more in-depth information.