Has Progressive Overtaken State Farm in Auto Insurance? What S&P's Estimate Shows and Why the Answer Depends on the Measure

A headline that Progressive has overtaken State Farm as America's largest private passenger auto insurer has circulated since May. The claim is based on an estimate by S&P Global Market Intelligence, and it is correct on the measure S&P used, but it needs to be read alongside other rankings that use different measures and still put State Farm first. This article sets out what each source says. An earlier version of this article reported Progressive's first-quarter net income, revenue, underwriting margin, policy count and State Farm's policyholder dividend. The S&P page that was cited contains only a summary line, so those figures could not be confirmed from it and have been removed. The latest Progressive results are covered separately in our report on its third quarter.

What does S&P's analysis say? According to a summary of the analysis in the trade press, Progressive overtook State Farm as the largest US private auto insurer on a trailing 12-month basis ending March 31, 2026. It wrote more than $1.57 billion more in private direct premiums than State Farm over that period. The analysis used first-quarter 2026 statutory financial statements, the standard regulatory filings, together with what S&P describes as limited proprietary estimates. State Farm had held the top auto position since 1942, and Progressive has been second since 2022, ahead of GEICO, which had taken that place from Allstate in 2013. S&P's page for its separate first-quarter earnings recap, published on May 26, gives the sector context: a best first quarter in 25 years, with underwriting gains of $22.10 billion.

Now the other measure. AM Best's review of 2025 results ranks US property and casualty insurers by net premiums written across all their lines, not only auto. On that basis, State Farm leads with $113.79 billion, up 5.6% from 2024. Progressive is second with $83.15 billion, up 11.7%, and it passed Berkshire Hathaway Insurance, which includes GEICO and made $80.97 billion, up 0.8%. The rest of the top ten, as listed, are Allstate with about $56.7 billion, Travelers with $42.1 billion, USAA with $37.5 billion, Liberty Mutual with $37.2 billion, Chubb with $27.5 billion, Farmers with $21.5 billion and Hartford with $17.7 billion. AM Best's list mixes groups and companies without explaining the distinctions, and uses a different time period, a full year 2025 against S&P's twelve months to March 2026.

The two sets of figures are therefore not in conflict. State Farm remains larger in total, because it writes large amounts of homeowners and other insurance as well as auto. In private auto alone, S&P estimates Progressive has pulled ahead on a more recent twelve-month window, while State Farm's auto premiums have grown slowly. The difference between 'largest overall' and 'largest in auto' is the point: Progressive is a car insurer first, with fast growth, while State Farm is a diversified group.

Why did the lead change? The Coverager article, published on June 14, argues that State Farm lost momentum after years of underwriting problems and inadequate rates, and that the gap now reflects momentum more than size. That explanation is the author's characterisation and no source is cited for it. The facts the article does report are that State Farm's property and casualty underwriting result in the first quarter of 2026 moved to a $1.8 billion gain from a $5.1 billion loss a year earlier, and its auto result moved from a loss of $3.6 billion to a gain of $1.0 billion, with written premiums up 1.9% to $27.9 billion. For Progressive, the article reports a combined ratio of 90.2% and net income of $1.1 billion in April 2026, a record $1.5 billion of advertising in the first quarter, up 20%, and an expansion of its Snapshot telematics programme to 14 states. These figures cover different periods for the two companies, so they should not be compared directly.

Progressive's growth has continued. In the third quarter, which we report on elsewhere in this series, the company said it had 40.489 million policies in force at September 30, with direct auto up 8% and agency auto up 7% from a year earlier, and a combined ratio of 88.7. That is consistent with an insurer that continues to add customers faster than the market.

What does this mean for drivers? The size of an insurer does not tell you whether it offers the best price or service for your situation. Prices differ by state, driver profile and insurer. A more useful approach is to compare quotes from several companies, including regional carriers, review coverage and deductibles, and ask about discounts such as telematics programmes, which monitor driving habits in exchange for lower rates and may also affect renewals if the data show risky behaviour.

For the industry, the shift matters because auto insurance is a scale business: large insurers spend heavily on advertising, data and claims technology. If Progressive continues to grow faster than State Farm, it will gain even more data and spending power, while State Farm's recovery in underwriting results shows it still has capital and brand strength. Readers should treat any 'No. 1' claim as a snapshot that depends on the definition used.