Markel Group has reported a quarterly loss in the first quarter of 2026 (Q1 2026) as a slump in its equity portfolio overshadowed gains achieved within its core insurance operations.

The US-based insurer posted an operating loss of $273m for the period, even as operating revenues remained stable at $3.55bn.

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The company’s adjusted operating income rose by 4% to $498m.

The primary driver behind the headline deficit was a $727.6m net investment loss, triggered by a 5.2% drop in equity securities.

Consequently, the bottom line transitioned to a $212.3m net loss, contrasting sharply with the $121.7m profit reported in Q1 2025.

However, the company continued its capital return strategy with share repurchases totalling $134m.

Markel’s insurance unit, described by the company as its “cornerstone”, reported a three-point improvement in combined ratio to 93%, a figure achieved despite absorbing two points of losses stemming from the Middle East conflict.

While the war added $35m to the quarterly claims bill, this was more than offset by $106.9m in favourable prior-year reserve releases.

For this segment, adjusted operating income jumped by 31% to $369m and underwriting profit surged by 77% to $142m, although gross written premiums saw a 21% decline to $2.22bn.

Markel Group CEO Tom Gayner said: “In Q1 2026, we generated strong results across the company. We are pleased with the continued progress of our ongoing operations. We continue to do more of what is working and less of what is not, while focusing on balance sheet strength, disciplined capital allocation and ongoing share repurchases.”