Join

Compare · ACGL vs OSG

ACGL vs OSG

Side-by-side comparison of Arch Capital Group Ltd. (ACGL) and Octave Specialty Group Inc. (OSG): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both ACGL and OSG operate in Property-Casualty Insurers (Finance), so they compete in similar markets.
  • ACGL is the larger of the two at $31.86B, about 129.6x OSG ($245.8M).
  • Over the past year, ACGL is down 2.2% and OSG is down 18.1% - ACGL leads by 15.9 points.
  • ACGL has been more active in the news (11 items in the past 4 weeks vs 1 for OSG).
  • ACGL has more recent analyst coverage (25 ratings vs 0 for OSG).
PerformanceACGL+0.59%OSG-18.09%
2025-06-10+0.00%2026-06-08
MetricACGLOSG
Company
Arch Capital Group Ltd.
Octave Specialty Group Inc.
Price
$90.31-0.96%
$5.54+1.19%
Market cap
$31.86B
$245.8M
1M return
-4.46%
-8.50%
1Y return
-2.19%
-18.09%
Industry
Property-Casualty Insurers
Property-Casualty Insurers
Exchange
NASDAQ
NYSE
IPO
News (4w)
11
1
Recent ratings
25
0
ACGL

Arch Capital Group Ltd.

Arch Capital Group Ltd., together with its subsidiaries, provides insurance, reinsurance, and mortgage insurance products worldwide. The company's Insurance segment offers primary and excess casualty coverages; loss sensitive primary casualty insurance programs; collateral protection, debt cancellation, and service contract reimbursement products; directors' and officers' liability, errors and omissions liability, employment practices and fiduciary liability, crime, professional indemnity, and other financial related coverages; medical professional and general liability insurance coverages; and workers' compensation and umbrella liability, as well as commercial automobile, and inland marine products. It also provides property, energy, marine, and aviation insurance; travel insurance; accident, disability, and medical plan insurance coverages; captive insurance programs; employer's liability; and contract and commercial surety coverages. This segment markets its products through a group of licensed independent retail and wholesale brokers. Its Reinsurance segment provides reinsurance for third party liability and workers' compensation exposures; marine and aviation reinsurance; surety, accident and health, workers' compensation catastrophe, agriculture, trade credit, and political risk products; reinsurance protection for catastrophic losses, and personal lines and commercial property exposures; life reinsurance; casualty clash; and risk management solutions. This segment markets its reinsurance products through brokers. The company's Mortgage segment offers direct mortgage insurance and mortgage reinsurance. The company was founded in 1995 and is based in Pembroke, Bermuda.

OSG

Octave Specialty Group Inc.

Overseas Shipholding Group, Inc., together with its subsidiaries, owns and operates a fleet of oceangoing vessels. Its vessels are engaged in the transportation of crude oil and petroleum products in the United States flag trades. As of December 31, 2019, the company owned or operated a fleet of 21 vessels totaling an aggregate of approximately 1 million deadweight tons. It serves independent oil traders, refinery operators, and the United States and international government entities. The company was founded in 1948 and is headquartered in Tampa, Florida.

Latest ACGL

Latest OSG