Specialty insurance brokers relying on managing general agents (MGAs) for non-standard risks are watching one of the sector’s largest capacity platforms change hands – and the central question for brokers placing business through the exchange is whether the terms that underpin those MGA relationships will hold.
Accelerant Holdings (NYSE: ARX), which operates the Accelerant Risk Exchange from Atlanta, connecting specialty insurance MGAs with risk capital providers, confirmed in its Q3 2026 earnings release that private equity firm Thoma Bravo will acquire the company in an all-cash transaction valued at more than $4 billion. The deal was announced in August 2026 and is expected to close in the first half of 2027. Once complete, Accelerant will delist from the New York Stock Exchange (NYSE) and operate as a private company.
The acquisition arrives alongside a significant shift in how the exchange is funded. Third-party direct written premium – capital from outside Accelerant’s own balance sheet – reached 49% of total Exchange Written Premium in Q3 2026, up from 32% a year earlier. Twelve months ago, Accelerant’s own capital dominated the platform. That balance has reversed.
Read more: How a softening market could stress-test specialty MGAs in 2026
Exchange Written Premium – the total premium processed across the platform from all MGA members and third-party carriers – grew 27% year-over-year to $1.33 billion in Q3 2026, according to the company’s Q3 2026 earnings release. For the trailing 12 months ended September 30, 2026, Exchange Written Premium reached $4.88 billion.
Accelerant added 26 MGAs in the quarter, bringing total membership to 340, compared with 265 a year earlier. Net revenue retention – the year-over-year premium growth generated by existing members, excluding new additions – fell to 116% from 135% in Q3 2025, reflecting a maturing membership base.
The gross loss ratio rose to 56.8% from 50.1% in Q3 2025. For brokers, what happens to that metric under new ownership matters directly. Scott Egan, chief executive of SiriusPoint, told Insurance Business in November 2026 that when MGAs switch capacity providers, “products can change, prices can change, and as a broker, you don’t really want that variability.” Brokers relying on the Accelerant platform for access to specialty markets served by its best-rated carriers and program administrators in the US face that same risk if an ownership transition prompts underwriting review or capacity restructuring.
Accelerant has differentiated itself in the specialty market through multi-year capacity commitments – an explicit contrast to the annual agreements that remain standard across much of the MGA sector. Whether those commitments survive intact under a private equity owner with a defined investment horizon is the core question for brokers placing business through Accelerant’s MGA members.
The concern sits within a broader pattern of institutional capital moving into specialty distribution. According to MarshBerry’s mid-year 2026 specialty intermediary market update, private equity accounted for 69% of announced specialty intermediary transactions in the US through June 2026. That concentration has drawn scrutiny from brokers and MGAs over what ownership transitions mean for underwriting continuity and capacity terms. As brokers helping MGAs buy specialty capacity in larger blocks across multiple programs, any shift in Accelerant’s capacity model would ripple directly into placement structures.
According to Thoma Bravo’s August 2026 press release, principal Matt LoSardo said Accelerant had “built something rare in specialty insurance” and that the firm planned to “invest behind the technology, data and capital capacity to support Accelerant’s next phase of growth.” That framing positions the acquisition as an expansion play – but the tension between private equity return timelines and long-term underwriting commitments remains live for the sector.
The deal arrives as the broader MGA market continues to expand. According to Conning’s July 2026 study, “Managing General Agents: Reconfiguring the Insurance Value Chain?”, US MGA premiums reached approximately $128 billion in 2025, with statutory direct premium written growing 12% year-over-year. Conning noted that rate was more than double the broader US property-casualty market’s approximately 5% growth rate over the same period – a trajectory that continues to draw private equity and institutional capital into specialty distribution infrastructure.
Read more: MGAs are buying capacity in bigger blocks — and it’s changing the broker’s role
On a GAAP (Generally Accepted Accounting Principles) basis, Accelerant posted a net loss of $9.2 million for the quarter, driven primarily by $32.3 million in share-based compensation expenses and $21.7 million in other non-recurring costs. On a non-GAAP basis, the company reported adjusted net income of $38.2 million and adjusted earnings before interest, taxes, depreciation, and amortization (EBITDA) of $71.3 million, with an adjusted EBITDA margin of 25%. Fee-based businesses generated $84.5 million of adjusted EBITDA, 75% higher year-over-year.
“We delivered another quarter of disciplined growth, with operating revenue of $280.2 million and adjusted EBITDA of $71.3 million. These capital-light businesses are key to value-creation, delivering recurring, fee-based revenue and EBITDA,” said Linda S. Huber, chief financial officer of Accelerant Holdings in Atlanta.
Jeff Radke, Accelerant’s chairman and chief executive officer, said the company “remains excited about our pending transaction with Thoma Bravo and continues to expect a first half 2027 close.” In light of the pending transaction, Accelerant will not host a Q3 earnings call and will not issue guidance for Q4 2026 or the full year.
