Large Cap
Insurance Brokers
Stocks Ranked by
Market Capitalization
| Name | Market cap | Price |
Price change % |
|
|---|---|---|---|---|
1
Marsh
MRSH
$97.7B
| $97.7B | $203.63 | 0.85% |
|
2
Arthur J. Gallagher & Co
AJG
$71.5B
| $71.5B | $273.45 | 1.95% |
|
3
Aon
AON
$70.7B
| $70.7B | $330.16 | 0.97% |
|
4
Willis Towers Watson
WTW
$30B
| $30B | $327.66 | 0.66% |
|
5
Brown & Brown
BRO
$23.8B
| $23.8B | $70.92 | 1.34% |
|
6
Erie Indemnity
ERIE
$14.3B
| $14.3B | $269.67 | 1.56% |
|
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 $308B.
The largest by market cap are Marsh (MRSH) at $97.7B, Arthur J. Gallagher & Co (AJG) at $71.5B and Aon (AON) at $70.7B.
Among institutional investors, Arthur J. Gallagher & Co (AJG) drew the most net new fund positions in Q2 2026: 164 funds opened new positions, taking total fund holders up 46 (3.7%) quarter-over-quarter.
- Combined market cap: $308B across 6 stocks.
- Large Cap: market cap between $10B and $200B.
- Largest constituent: Marsh (MRSH), $97.7B market cap.
- Most net new fund positions in Q2 2026: Arthur J. Gallagher & Co (AJG), +46 holders.
Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q2 2026.