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Compare · AMBC vs WRB

AMBC vs WRB

Side-by-side comparison of Ambac Financial Group Inc. (AMBC) and W.R. Berkley Corporation (WRB): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both AMBC and WRB operate in Property-Casualty Insurers (Finance), so they compete in similar markets.
  • WRB is the larger of the two at $24.31B, about 38.4x AMBC ($633.0M).
  • Over the past year, AMBC is up 19.7% and WRB is down 10.5% - AMBC leads by 30.2 points.
  • WRB has hit the wire 2 times in the past 4 weeks while AMBC has been quiet.
  • WRB has more recent analyst coverage (25 ratings vs 4 for AMBC).
PerformanceAMBC+19.67%WRB-4.25%
2025-06-04+0.00%2025-11-19
MetricAMBCWRB
Company
Ambac Financial Group Inc.
W.R. Berkley Corporation
Price
$9.04-0.50%
$66.23+1.41%
Market cap
$633.0M
$24.31B
1M return
+9.38%
-0.38%
1Y return
+19.67%
-10.54%
Industry
Property-Casualty Insurers
Property-Casualty Insurers
Exchange
NYSE
NYSE
IPO
News (4w)
0
2
Recent ratings
4
25
AMBC

Ambac Financial Group Inc.

Ambac Financial Group, Inc., a financial services holding company, provides financial guarantees in the United States, the United Kingdom, Italy, Austria, Australia, France, and Internationally. It offers financial guarantee insurance policies; and credit derivative contracts and interest rate derivative transactions. The company was incorporated in 1991 and is headquartered in New York, New York.

WRB

W.R. Berkley Corporation

W. R. Berkley Corporation, an insurance holding company, operates as a commercial lines writer in the United States and internationally. It operates in two segments, Insurance and Reinsurance & Monoline Excess. The Insurance segment underwrites commercial insurance business, including premises operations, commercial automobile, property, products liability, and general and professional liability lines. It also provides workers' compensation insurance products; accident and health insurance and reinsurance products; insurance for commercial risks; specialty environmental products for contractors, consultants, and property owners and facilities operators; specialized insurance coverages for fine arts and jewelry exposures; umbrella and excess liability coverage products; and liquor liability and inland marine coverage for small to medium-sized insureds. In addition, this segment offers directors and officers, and surety risk products, as well as products for technology, and life sciences and travel industries; cyber risk solutions; casualty, group life, and crime and fidelity related insurance products; personal lines insurance solutions, including home, condo/co-op, auto, and collectibles; automobile, law enforcement, public officials and educator's legal, and employment practices liability, as well as incidental medical insurance products; and at-risk and alternative risk insurance program management services. The Reinsurance & Monoline Excess segment provides other insurance companies and self-insureds with assistance in managing their net risk through reinsurance on a portfolio basis through treaty reinsurance or on an individual basis through facultative reinsurance. W. R. Berkley Corporation was founded in 1967 and is headquartered in Greenwich, Connecticut.

Latest AMBC

Latest WRB