Large Cap
Insurance Brokers
Stocks Ranked by
Market Capitalization
| Name | Market cap | Price |
Price change % |
|
|---|---|---|---|---|
|
MRSH
1
Marsh
MRSH
$92.9B
| $92.9B | $194.67 | 1.39% |
|
2
Aon
AON
$76.2B
| $76.2B | $359.10 | 1.12% |
|
3
Arthur J. Gallagher & Co
AJG
$69.7B
| $69.7B | $271.99 | 3.1% |
|
4
Willis Towers Watson
WTW
$32.6B
| $32.6B | $350.75 | 2.56% |
|
5
Brown & Brown
BRO
$25B
| $25B | $74.62 | 2.33% |
|
6
Erie Indemnity
ERIE
$14B
| $14B | $268.64 | 1.43% |
|
Large Cap Insurance Brokers Stocks at a Glance
Insurance brokers arrange coverage between clients and carriers, earning commissions and fees without underwriting risk. Capital-light and cash-generative, they compound through premium-rate cycles and acquisitions in a fragmented market.
There are 6 large cap Insurance Brokers stocks — companies in the Insurance Brokers industry with a market cap between $10B and $200B — worth a combined $310B.
The largest by market cap are Marsh (MRSH) at $92.9B, Aon (AON) at $76.2B and Arthur J. Gallagher & Co (AJG) at $69.7B.
Among institutional investors, Arthur J. Gallagher & Co (AJG) drew the most net new fund positions in Q2 2026: 162 funds opened new positions, taking total fund holders up 39 (3.1%) quarter-over-quarter.
- Combined market cap: $310B across 6 stocks.
- Large Cap: market cap between $10B and $200B.
- Largest constituent: Marsh (MRSH), $92.9B market cap.
- Most net new fund positions in Q2 2026: Arthur J. Gallagher & Co (AJG), +39 holders.
Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q2 2026.