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Mid Cap
Property & Casualty Insurance
Stocks Ranked by
Market Capitalization

Name Market cap Price Price
change %
KNSL icon
1
Kinsale Capital Group
KNSL
$8.84B
$8.84B $387.95 1.91%
THG icon
2
Hanover Insurance
THG
$7.91B
$7.91B $227.12 0.15%
RLI icon
3
RLI Corp
RLI
$5.96B
$5.96B $64.90 2.58%
MCY icon
4
Mercury Insurance
MCY
$5.79B
$5.79B $104.48 1.69%
SIGI icon
5
Selective Insurance
SIGI
$5.47B
$5.47B $91.91 0.8%
WTM icon
6
White Mountains Insurance
WTM
$5.11B
$5.11B $2,141.20 0.42%
LMND icon
7
Lemonade
LMND
$4.21B
$4.21B $54.42 1.06%
PLMR icon
8
Palomar
PLMR
$3.47B
$3.47B $131.75 0.96%
SLDE
9
Slide Insurance Holdings
SLDE
$2.69B
$2.69B $23.06 2.45%
SKWD icon
10
Skyward Specialty Insurance
SKWD
$2.33B
$2.33B $57.40 0.9%
HCI icon
11
HCI Group
HCI
$2.31B
$2.31B $185.69 0.21%
STC icon
12
Stewart Information Services
STC
$2.12B
$2.12B $69.30 0.9%
HMN icon
13
Horace Mann Educators
HMN
$2.07B
$2.07B $51.02 0.35%

Mid Cap Property & Casualty Insurance Stocks at a Glance

Property and casualty insurers cover property, auto, liability, and catastrophe risks. Underwriting profit — premiums minus claims and costs — plus investment income on float drives returns, with pricing moving in hard and soft market cycles shaped by catastrophe losses.

There are 13 mid cap Property & Casualty Insurance stocks — companies in the Property & Casualty Insurance industry with a market cap between $2B and $10B — worth a combined $58.3B.

The largest by market cap are Kinsale Capital Group (KNSL) at $8.84B, Hanover Insurance (THG) at $7.91B and RLI Corp (RLI) at $5.96B.

Among institutional investors, Hanover Insurance (THG) drew the most net new fund positions in Q2 2026: 84 funds opened new positions, taking total fund holders up 39 (7.7%) quarter-over-quarter.

Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q2 2026.