WTM White Mountains Insurance Group, Ltd.
Banks, Insurers & Asset Managers
C- 46.4 / 100 composite

AlphaQuality composite grade, weighted for banks, insurers & asset managers businesses.

Profitability

Weight: 25%
F 0

Scored using loss ratio — insurer-archetype substitution.

  • Loss Ratio 1610.8%
  • Loss Ratio Trend +422.76 pp/yr

Capital Efficiency

Weight: 15%
B 74
  • 5yr Avg ROE 10.2%
  • 5yr Share-Count CAGR -3.7%

Growth Quality

Weight: 10%
B- 66

Scored using premium growth cross-checked against loss-ratio trend — insurer-archetype substitution.

  • 5yr Premium CAGR 139.0%
  • Loss Ratio Trend (growth quality check) +422.76 pp/yr
  • Revenue-Growth Years (5) 4/5

Cash Generation

Weight: 15%
D- 29

Scored using reserve development and loss-ratio stability — insurer-archetype substitution.

  • Reserve Development -0.2%
  • Loss Ratio Stability (σ) 7.55

Balance Sheet

Weight: 25%
A- 83

Scored using premiums-to-surplus — insurer-archetype substitution.

  • Premiums / Surplus 0.33x
  • Interest Coverage (EBIT/Int) 23.93x

Stability

Weight: 10%
D 38
  • EPS Volatility (σ/μ) 0.65
  • Negative-Revenue Years (5) 1/5
  • Piotroski F-Score 3

Guru Flow

Curated superinvestor sentiment — not part of the AlphaQuality grade.
Holding

2 of 3 gurus held; 1 added; 1 trimmed; 1 full exit.

Holders
2 -1
Avg Δ position
+36.3%
New buys
0
Full exits
1
As of Q2 2026