Sompo Japan: The Rival Under the Same OrdersNarrow moat

Tokio Marine Holdings (8766) — moat facet

Sompo Japan faces the same regulators and the same slow market, three points of share behind.

Sompo Japan holds 24% of the Japanese non-life market1, three points behind Tokio Marine & Nichido. It was among the insurers named in the Japan Fair Trade Commission's cease and desist and surcharge orders of October 20242.

Japan non-life after the ordersJFTC ordersOctober 2024, several non-life insurersTokio Marine & Nichido27%Sompo Japan24%Market growthabout 2.5% a yearJFTC; Tokio Marine IR conference, May 2026
Three large rivals, one set of findings.

The shared findings make the Japanese rivals partners in reform as well as competitors. Each has to show regulators and customers that it can compete without the old arrangements.

The market these three share grows about 2.5% a year3. In a slow market, a rival that prices aggressively to win back customers after the scandals could narrow Tokio Marine's margins.

Tokio Marine & Nichido's combined ratio averaged 93.2% over ten years against 95.3% for the market4. If the rivals compete harder on price, that two-point gap is what they will be competing against.

The measure is Tokio Marine & Nichido's combined ratio against the market's. A narrowing gap would show competition eroding its underwriting edge.

Moat trajectory: Holding steady

Shares unchanged.

The number that tests this moat
Reported
Sompo Japan share of Japan non-life
24%

The third large rival; its pricing after the scandals will test the market.

Source: Tokio Marine IR conference, May 2026 ↗
References
  1. ReportedSompo Japan holds 24% of the Japanese non-life market, three points behind Tokio Marine & Nichido.
    Tokio Marine Holdings, Group Business Strategy IR conference, 26 May 2026 - Japan P&C: market share, combined ratios, auto insurance, premiums, sales channels and the regulatory orders. — 2016-2026 · publ. 26 May 2026 · source ↗
  2. ReportedIt was among the insurers named in the Japan Fair Trade Commission's cease and desist and surcharge orders of October 2024.
    Japan Fair Trade Commission, 31 October 2024 - cease and desist orders and surcharge payment orders against non-life insurance companies for price-fixing. — October 2024 · publ. 31 October 2024 · source ↗
  3. ReportedThe market these three share grows about 2.5% a year.
    Tokio Marine Holdings, Group Business Strategy IR conference, 26 May 2026 - Japan P&C: market share, combined ratios, auto insurance, premiums, sales channels and the regulatory orders. — 2016-2026 · publ. 26 May 2026 · source ↗
  4. ReportedTokio Marine & Nichido's combined ratio averaged 93.2% over ten years against 95.3% for the market.
    Tokio Marine Holdings, Group Business Strategy IR conference, 26 May 2026 - Japan P&C: market share, combined ratios, auto insurance, premiums, sales channels and the regulatory orders. — 2016-2026 · publ. 26 May 2026 · source ↗
Sources
Generated September 24, 2026