Impact of Mergers and Acquisitions on Shareholder Value in Insurance
A recent study by ACORD evaluates the impact of mergers and acquisitions within the insurance industry, highlighting effects on shareholder value. The investigation reveals that 75% of deals involving reinsurers and multiline insurers diminished shareholder value. In contrast, a majority of property/casualty (P/C) and life/health (L/H) insurer M&A activities led to value creation, with 60% of P/C and 70% of L/H deals yielding positive outcomes.
The research employed total shareholder return (TSR), adjusted for dividends and compared to the MSCI World Index, to measure transaction performance. Results between the closing date and December 2025 showed that reinsurers and multiline insurers suffered returns 13.3% below the market average. Meanwhile, P/C insurers exceeded the market by 3.1%, and L/H insurers achieved even more favorable outcomes with returns averaging 23.4% above market rates.
ACORD's analysis of 34 company transactions, selected for criteria like public trading status and disclosed deal values, revealed that efforts to achieve scale often contributed to value erosion. The study indicates these ambitions frequently fail due to bureaucratic barriers and integration challenges, impeding expected advantages.
Dave Sterner, ACORD's Senior Vice President of Research & Development, stressed that the assumed benefits of scale often fall short owing to execution issues. Effective management of value-capture processes is crucial, or potential synergies identified during due diligence may not materialize.
Broader trends noted in the report include the fact that although only 21% of analyzed M&A transactions were carrier-focused, they accounted for 77% of the monetary volume. The number of deals contracted from 321 in 2016 to 163 by 2025, a shift attributed to economic aspects like increased capital costs and regulatory complexities.
Sterner highlights the necessity of disciplined execution for M&A strategy success. Organizations poised for sustained value creation will likely excel in operational integrity, translating strategy into actionable plans and facilitating effective integrations. Additionally, the report outlines potential barriers to value creation, such as cultural integration issues and systems incompatibility, while also pointing out enablers like governance frameworks and value-tracking mechanisms.
ACORD emphasizes the role of data standards in easing integrations and providing a common language across operational dimensions. The study's findings are accessible to both members and the public, available for download on ACORD's website for those interested in exploring the detailed insights.