ACGL · CIK 0000947484
What Arch Capital Group Ltd. told the SEC could break it.
Arch Capital's disclosures are entirely regulatory, spanning the breadth of its (re)insurance operations. Its mortgage-insurance business must hold minimum statutory capital against risk in force (in Wisconsin, North Carolina and 14 other states) and build contingency loss reserves of at least 50% of net earned premiums, generally locked for ten years — constraints on writing new business and paying dividends. Its non-U.S. underwriting subsidiaries face the extraterritorial reach of expanding Russia energy-sector sanctions, requiring continual compliance and exposure monitoring. And as a Bermuda-headquartered insurer it is exposed to tax-regime change — the OECD Pillar I/II initiatives and a newly enacted Bermuda corporate income tax, with Pillar II top-up taxes already accrued on certain operations in 2025.
3 self-disclosed vulnerabilities, pulled from its own filings, each in the company’s words, with the source. This is the risk register almost nobody reads.
In its own words
What could break it.
Regulatory & policy
- mortgage-insurer statutory-capital and contingency-reserve requirements (WI, NC + 14 states)medium
Arch's mortgage insurance business must maintain minimum statutory capital relative to risk in force (Wisconsin, North Carolina, and 14 other states) and establish contingency loss reserves of ≥50% of net earned premiums generally locked for 10 years — constraints on writing new business and paying dividends.
“Under Wisconsin and North Carolina law, as well as that of 14 other states, a mortgage insurer must maintain a minimum amount of statutory capital relative to its risk in force in order for the mortgage insurer to continue to write new business.”
SEC filing →As of 2026 - economic sanctions (Russia) with extraterritorial reach to non-US underwriting subsidiariesmedium
Expanding sanctions targeting the Russian energy sector (Russian and non-Russian companies, persons, and vessels) may have extraterritorial reach into Arch's non-U.S. underwriting subsidiaries, creating compliance and underwriting-exposure risk that Arch must continually monitor.
“Recent sanctions also target the Russian energy sector, including Russian and non-Russian companies, persons and vessels which are aiding Russia's production of oil. These sanctions may have extra-territorial reach to our non-U.S. underwriting subsidiaries.”
- OECD Pillar II top-up taxes and new Bermuda corporate income taxmedium
As a Bermuda-headquartered (re)insurer, Arch faces tax/regulatory developments affecting Bermuda-based insurers — notably the OECD Pillar I/II initiatives and the enactment of a Bermuda corporate income tax — with Pillar II top-up taxes already accrued on non-UK and non-Canadian operations in 2025.
“statutory or regulatory developments, including as to tax matters and insurance and other regulatory matters such as the adoption of legislation that affects Bermuda-headquartered companies and/or Bermuda-based insurers or reinsurers and/or changes in regulations or tax laws applicable to us, our subsidiaries, brokers or customers, including the implementation of the Organization for Economic Cooperation and Development (“OECD”) Pillar I and Pillar II initiatives and the enactment of Bermuda corporate income tax;”
SEC filing →As of 2026
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