# CA P&C market share — Mercury Ins Co (COCODE 27553), Private Passenger Auto Physical Damage, 2025 — context brief

California P&C market share data for Mercury Ins Co (COCODE 27553) for line 21.1 (Private Passenger Auto Physical Damage) in 2025: direct written premium $1,249,492,865 (RECORDED, CA DOI), market share 5.50% rank #5 (AGGREGATED, Atlas Commons), loss ratio 41.40% (AGGREGATED, Atlas Commons). Source: CA DOI P&C Market Share Report 2025. CC0.

Claims (warrant · source), each re-fetchable to verify:

- **Mercury Ins Co wrote $1,249,492,865 in California direct premiums for Private Passenger Auto Physical Damage in 2025** — RECORDED · California DOI P&C Market Share Report 2025 (https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/)
- **Mercury Ins Co's California market share for Private Passenger Auto Physical Damage (2025) is 5.50%** — DERIVED · California DOI P&C Market Share Report 2025 (Atlas Commons aggregation — company DWP / sum(all line DWP for 2025) × 100) (https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/)
- **Mercury Ins Co ranks #5 by direct written premium in Private Passenger Auto Physical Damage in California (2025)** — DERIVED · California DOI P&C Market Share Report 2025 (Atlas Commons aggregation — dense rank by DWP desc within line 21.1, year 2025) (https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/)
- **Mercury Ins Co's California loss ratio for Private Passenger Auto Physical Damage (2025) is 41.40%** — DERIVED · California DOI P&C Market Share Report 2025 (Atlas Commons aggregation — direct losses incurred / direct premiums earned × 100) (https://www.insurance.ca.gov/01-consumers/120-company/04-mrktshare/)
- **What this CA market-share profile is — and is NOT — for Mercury Ins Co (Private Passenger Auto Physical Damage, 2025)** — INTERPRETATION · Coverage Atlas framing (over the CA DOI sources cited above) (https://coverage-atlas.ryanjhunter.workers.dev/coverage/market-share/ca/27553-ppa-phys-2025)

Do not take these on trust — re-fetch each named source. Full structured object: `https://coverage-atlas.ryanjhunter.workers.dev/coverage/market-share/ca/27553-ppa-phys-2025.jsonld` · anatomy of the research object: see /commons/the-research-object

**Mercury Ins Co — CA P&C market share (Private Passenger Auto Physical Damage, 2025)** (9): Direct written premium — $1,249,492,865 — RECORDED; Market share (% of line DWP) — 5.50% — AGGREGATED; Rank by DWP (within line×year) — #5 — AGGREGATED…