Gallagher’s (AJG) Colorado Deal Is Another Brick in a Very Big Wall

On September 15, Arthur J. Gallagher & Co. (NYSE: AJG ) announced that it had bought McMillan Insurance & Bonding Inc., an Englewood, Colorado, firm that operates as Innovise Business Consultants. Gallagher did not say what it paid. On its own, the deal is a footnote. But it is one of many, and the way those deals show up in earnings is where the debate over this stock really lives.

On July 30, Gallagher reported results for the quarter ended June 30, and the top line was hard to argue with. Revenue from its combined Brokerage and Risk Management businesses grew 24%, and organic growth, which leaves out acquisitions, was 6%. That second number shows clients are staying and spending. It was not confined to one corner, either, since organic fees in the risk management arm rose 12%. Management adds that retention is strong and customers want broader help from the platform. Adjusted earnings per share climbed to $2.84 from $2.30, which means growth is reaching profit once one-time acquisition costs are set aside.

Innovise fits the pattern. It sells surety bonds and commercial insurance brokerage with a focus on manufacturing, energy, construction and real estate, and Chairman and CEO J. Patrick Gallagher, Jr. said that niche expertise adds depth in Colorado. Jason McMillan's team will move into Gallagher's Denver office and work under Bret VanderVoort, who oversees retail property/casualty brokerage for the Western Zone. Buying specialists and folding them into existing offices is a repeatable playbook, and Gallagher closed 14 brokerage acquisitions in the first six months of 2026.

Now look at reported earnings, because that is where you see the cost. Diluted earnings per share fell to $1.25, from $1.40 in the second quarter of 2025, even though revenue jumped. Much of the gap between reported and adjusted results is the price of buying growth. Amortization of acquired intangibles alone weighs on brokerage net earnings by $218 million, up from $130 million a year ago, and integration costs rose as well. Adjusted figures set those aside, but they are real expenses, and they keep landing as long as Gallagher keeps buying.

Margins tell a similar story. The brokerage segment's adjusted EBITDAC margin, a stand-in for operating profit, slipped to 33.3% from 36.1%. Gallagher points to last year's interest income on cash raised for the AssuredPartners deal, which closed in the third quarter of 2025, plus seasonality and newly added tuck-ins. That is a fair explanation. But the debt behind the deal is still here, including $9.55 billion of public debt, plus more in private placements and on a credit line. And the deal flow is thinner: brokerage acquisitions closed in the first six months of 2026 carried $107 million of annualized revenue, versus $354 million a year earlier, which puts more weight on organic growth.