Chubb CEO warns of Strait of Hormuz disruption risks

Evan Greenberg, chairman and chief executive of Chubb, has described the Strait of Hormuz as a war-zone environment with conditions changing hourly, underscoring the acute risks facing global energy supply chains. The comments, made during an interview on Fox News on 21 June 2026, come as Iran announced the closure of the strait on 22 June 2026, despite ongoing efforts by the U.S. Navy to guide vessels through alternative routes along Oman’s coastline.

Chubb, the world's largest publicly traded property and casualty insurer, is actively positioning itself within this volatile landscape. On 19 June 2026, the company jointly launched a $400 million marine war risk insurance consortium with Lloyd’s of London to cover passage through the strait. This initiative complements Chubb’s participation in a U.S. International Development Corp.-backed $20 billion reinsurance program launched in April 2026, signalling a significant capital commitment to underwriting risk in the region.

Greenberg’s assessment highlights the operational constraints currently limiting transit. He noted that only a narrow channel is being used, which restricts the number of ships that can move in and out simultaneously. This bottleneck persists even as U.S. Central Command reported that 55 merchant ships were transiting and more than 17 million barrels of oil were moving through the waterway at one time, according to Bloomberg.

The geopolitical backdrop remains fragile. First-round U.S.-Iran peace talks in Lucerne, Switzerland, concluded on 22 June 2026, with Qatar and Pakistan describing the progress as encouraging and establishing a 60-day roadmap toward a final deal. However, continued conflict in Lebanon and ongoing Iranian proxy activity present live variables that make any timeline for resolution uncertain.

For Chubb shareholders, the situation presents a complex risk-reward dynamic. The company’s first-quarter fiscal 2026 results, reported on 21 April, showed a strong property and casualty combined ratio of 84.0% and underwriting income of $1.79 billion, up 306 per cent year-on-year. While elevated war risk premiums can expand margins, Greenberg acknowledged that war in the Middle East raises the specter of higher inflation and slower economic growth globally.

Chubb shares closed at $323.40 on 18 June 2026, down 1.39 per cent for the session. The stock has underperformed the S&P 500 year-to-date, yet analysts project revenue of approximately $13.37 billion for the second quarter of fiscal 2026. The insurer’s defensive stability and market-leading presence are viewed as key resilience factors as geopolitical uncertainty compounds.