Accelerant (NYSE: ARX) premium volume jumps 27% but EBITDA margin slips

Posted by Ethan Ryder on Nov 12th, 2026

What happened

Accelerant Holdings (NYSE: ARX) grew third-quarter operating revenue 22.9% to $280.2 million, but its adjusted EBITDA margin slipped to 25.4% from 29%. Operating revenue was $227.9 million a year earlier. Revenue grew faster than profit, so each dollar of revenue carried less adjusted EBITDA than a year ago.

Adjusted EBITDA rose 8.9% to $71.3 million from $65.5 million in the third quarter of 2025. Operating revenue is GAAP revenue without net realized and unrealized investment gains or losses. Adjusted EBITDA leaves them out too.

Accelerant reported the quarter ended Sept. 30, 2026 in an earnings release on Nov. 12. It also said it has a definitive merger agreement with Thoma Bravo, first announced Aug. 13. Closing is expected in the first half of 2027, subject to customary closing conditions. Because of the deal, Accelerant will not host an earnings call or give guidance for the fourth quarter or full year 2026.

Key numbers

Metric	Latest	Change	Source
Operating revenues, Q3	$280.2 million	from $227.9 million, +22.9%	Calculated from SEC 8-K
Exchange Written Premium, Q3	$1.33 billion	from $1.04 billion, +27%	SEC 8-K Exhibit 99.1
Adjusted EBITDA, Q3	$71.3 million	from $65.5 million, +8.9%	Calculated from SEC 8-K
Adjusted EBITDA margin, Q3	25.4%	from 29%	SEC 8-K Exhibit 99.1
Fee-based adjusted EBITDA, Q3	$84.5 million	+75%	SEC 8-K Exhibit 99.1
Net loss, Q3	$9.2 million	from $1.37 billion	SEC 8-K Exhibit 99.1

Read more: Accelerant (ARX) company research

Where the growth came from

Volume on the exchange drove the top line. Exchange Written Premium grew 27% to $1.33 billion, up from $1.04 billion a year earlier. For the 12 months ended Sept. 30, 2026 it was $4.88 billion.

More of that volume came from outside Accelerant. Third-party direct written premium was 49% of the total, up from 32%. Accelerant direct written premium fell to 51% from 68%. Members rose to 340 from 265, and the company said it added 26 MGAs in the quarter.

Fee-based businesses are consolidated results less the Underwriting segment. They delivered $84.5 million of adjusted EBITDA, up 75% from a year earlier. Exchange Services reported adjusted EBITDA of $73.8 million against $59.2 million. MGA Operations reported $41.0 million against $14.7 million. Both figures are before corporate costs and eliminations. The Underwriting segment swung to an adjusted EBITDA loss of $13.2 million from a $17.2 million profit.

Stock perps: every US stock that trades as a perpetual future, by leverage, live

Why it matters

OptimistFi has argued that Accelerant creates value if its marketplace keeps attracting MGAs and risk capital without turning growth into balance-sheet insurance risk. The rising member count, the larger third-party share and the fee-based earnings growth support the first half of that view.

The risk half is less clean. Accelerant-retained exchange premium rose to 11% of the total from 7%. The gross loss ratio rose to 56.8% from 50.1%. Both moves came in the quarter the Underwriting segment turned to a loss.

Net revenue retention fell to 116% from 135%. With the lower margin, that means growth is not yet bringing stronger retention or margin leverage.

On balance, the quarter strengthens the marketplace side of the case, with the retained-risk figures as the caveat.

What the GAAP loss includes

On a GAAP basis Accelerant lost money in the quarter. The pre-tax loss was $1.6 million, the net loss was $9.2 million and the net loss per diluted share was $0.06. A year earlier the net loss was $1.37 billion. That included $1.38 billion of non-cash profits interest distribution expenses tied to the July 2025 IPO. The filing says those expenses will not recur and were offset by an equal capital contribution.

Adjusted measures fell. Adjusted net income was $38.2 million against $48.6 million. Adjusted earnings per diluted share were $0.18 against $0.24. Both leave out share-based compensation, other expenses and investment gains and losses.

Total revenues rose only 4.2% to $278.6 million from $267.4 million. The year-ago quarter included $39.5 million of net investment gains, which operating revenue leaves out.

What's next

The next dated event is the Thoma Bravo merger, which Accelerant expects to close in the first half of 2027, subject to customary closing conditions.

Accelerant will not give guidance for the rest of 2026. The next quarterly report is the next read on retained premium, the loss ratio and net revenue retention. A smaller retained share and a lower loss ratio would strengthen the case. Further increases would weaken it.