Roundstone Insurance Returns $2 Million to Captive Participants Amid Rising Healthcare Costs

Roundstone Insurance has distributed over $2 million to participants in its July 2025 group medical captive, highlighting the financial viability of self-funded models for mid-sized employers. For insurance brokers and benefits consultants, this return of surplus capital demonstrates how alternative risk transfer mechanisms can outperform traditional fully insured markets amidst rising healthcare inflation.

What was announced

Roundstone’s latest distribution exceeds $2 million, specifically benefiting employers participating in its July 2025 captive pool. This payout is a direct result of the group captive model, which allows small and mid-sized businesses to pool their risk and share in the underwriting profits and investment income that would typically be retained by a commercial carrier. The distribution serves as a tangible return on unused premium, reinforcing the company's focus on reducing the total cost of care.

The company reported significant cost advantages compared to broader market trends. While a recent Mercer study placed the industry average for per-employee-per-year (PEPY) healthcare costs at $17,369, Roundstone’s average PEPY is currently $12,553. This represents a saving of nearly $5,000 per employee. Furthermore, captive participants saw an average renewal increase of 7%, a figure that provides greater predictability for employers navigating a volatile healthcare landscape.

The model relies on data transparency and proactive cost containment. By providing employers with visibility into the specific drivers of their healthcare spend, the captive allows for customized plan designs and informed decision-making. Since its inception, the firm has grown to cover more than $1.5 billion in health insurance claims annually for over 1,000 employers that utilize its group medical captive structure.

The companies involved

Roundstone Insurance was established in 2005 with a specific focus on the small and mid-sized business (SMB) segment. Based in the United States, the company operates as a specialist in the group medical captive space, providing an alternative to the traditional fully insured health insurance market. Its primary value proposition is enabling smaller organizations to access the benefits of self-funding—such as transparency, control, and the return of unused premium—which were historically reserved for large enterprises with significant capital reserves.

The company’s growth has been driven by its ability to manage a diverse portfolio of employers, collectively covering a substantial volume of claims. By acting as the architect of these captive structures, Roundstone manages the complexities of stop-loss insurance, underwriting, and claims data analysis. This allows its 1,000+ client employers to operate with the scale of a much larger entity, mitigating the impact of high-cost individual claims through the collective strength of the captive pool.

What this means from an insurtech perspective

This distribution underscores the increasing pressure on traditional carriers to justify high premiums and opaque fee structures. As insurtech platforms and data analytics improve transparency, the group captive model becomes more accessible to brokers who previously relied on standard fully insured products. For the wider industry, this shift highlights a move toward "active" underwriting, where employers use real-time data to implement cost-containment strategies rather than accepting passive annual increases. The 7% renewal rate is particularly disruptive, suggesting that legacy carriers may lose market share if they cannot match the transparency and capital efficiency of modern self-funded alternatives. This trend places the burden on incumbent vendors to modernize their core systems to provide the same level of granular data visibility that captives now offer.