Large Cap
Insurance Brokers
Stocks Ranked by
Market Capitalization
| Name | Market cap | Price |
Price change % |
|
|---|---|---|---|---|
1
Marsh
MRSH
$89.9B
| $89.9B | $188.35 | 0.97% |
|
2
Arthur J. Gallagher & Co
AJG
$65.3B
| $65.3B | $254.88 | 1.91% |
|
3
Aon
AON
$62.1B
| $62.1B | $292.55 | 2% |
|
4
Willis Towers Watson
WTW
$29.3B
| $29.3B | $315.49 | 1.65% |
|
5
Brown & Brown
BRO
$23.2B
| $23.2B | $69.40 | 2.09% |
|
6
Erie Indemnity
ERIE
$12.7B
| $12.7B | $243.71 | 2.1% |
|
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 $283B.
The largest by market cap are Marsh (MRSH) at $89.9B, Arthur J. Gallagher & Co (AJG) at $65.3B and Aon (AON) at $62.1B.
Among institutional investors, Arthur J. Gallagher & Co (AJG) drew the most net new fund positions in Q2 2026: 163 funds opened new positions, taking total fund holders up 45 (3.6%) quarter-over-quarter.
- Combined market cap: $283B across 6 stocks.
- Large Cap: market cap between $10B and $200B.
- Largest constituent: Marsh (MRSH), $89.9B market cap.
- Most net new fund positions in Q2 2026: Arthur J. Gallagher & Co (AJG), +45 holders.
Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q2 2026.