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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