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Diversified Insurance
Stocks Ranked by
Market Capitalization

Diversified Insurance Stocks at a Glance

Diversified insurers underwrite across life, health, and property and casualty lines. The multi-line spread balances catastrophe exposure against long-duration liabilities, with returns driven by underwriting discipline and the investment income earned on float.

There are 12 Diversified Insurance industry stocks tracked by Wall St. Rank, worth a combined $2.3T.

The largest by market cap are Berkshire Hathaway Class B (BRK.B) at $1.06T, Berkshire Hathaway Class A (BRK.A) at $1.05T and Sun Life Financial (SLF) at $44.9B.

Among institutional investors, Berkshire Hathaway Class B (BRK.B) drew the most net new fund positions in Q1 2026: 226 funds opened new positions, taking total fund holders down 26 (0.53%) quarter-over-quarter.

Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q1 2026.