Arthur J. Gallagher & Co. (AJG) Stock Price & How to Invest
Last updated July 2026
Short answer
Arthur J. Gallagher (AJG) is one of the world's largest insurance brokers, and investors typically treat it as a steady compounder that grows through mid-single-digit organic gains plus a relentless stream of tuck-in acquisitions, though the stock usually carries a premium valuation.
AJG stock price
As of 2026-07-23, Arthur J. Gallagher & Co. (AJG) last closed at $242.21, down 21.6% over the past year. Over the past 52 weeks it has traded between $192.00 and $315.14.
Prices are daily closing prices from Yahoo Finance and may be delayed. For the live quote, check your broker or Arthur J. Gallagher & Co.'s investor relations page. Walnut is informational, not investment advice.
What does Arthur J. Gallagher & Co. (AJG) do?
Arthur J. Gallagher & Co. is a global insurance brokerage, risk management, and consulting firm, ranking as the third-largest publicly traded insurance broker behind Marsh & McLennan and Aon. Its Brokerage segment places property, casualty, employee benefits, wholesale, and reinsurance coverage for businesses and institutions, earning commissions and fees, while its Risk Management segment (Gallagher Bassett) handles third-party claims administration. The company runs an asset-light, fee-and-commission model that generates strong free cash flow, and it has built a decades-long track record of growing by acquiring smaller regional brokers and folding them into its platform.
The investment picture centers on a proven compounding machine. AJG has posted many consecutive quarters of double-digit adjusted earnings growth, driven by roughly 5% to 6% organic revenue growth plus a large and steady M&A pipeline, capped recently by its transformational AssuredPartners acquisition. The trade-off is valuation: the stock typically trades at a meaningful premium to the broader insurance sector and to some peers, reflecting its consistency and growth. Bulls point to durable demand, pricing power, and synergy potential; skeptics focus on integration risk on larger deals, softening property insurance pricing, and the high multiple.
What's driving Arthur J. Gallagher & Co. (AJG)?
1. Acquisition-led compounding
Gallagher's core growth engine is a continuous stream of tuck-in mergers, completing dozens of deals per year plus periodic large transactions. In early 2026 it closed nine tuck-ins in a single quarter and reported a pipeline of over 40 term sheets, giving it a long runway to keep adding acquired revenue on top of organic growth.
2. AssuredPartners integration and synergies
The AssuredPartners deal is described as the largest in the insurance brokerage industry's history and materially expanded Gallagher's retail property-casualty footprint. Management targets up to roughly $160 million in run-rate synergies by the end of 2026, so execution on that integration is a key swing factor for margins and earnings.
3. Durable organic growth
Gallagher has guided to full-year 2026 organic revenue growth around 5% to 6%, supported by new business, retention, and exposure increases across retail, wholesale, reinsurance, and benefits. Gallagher Bassett's risk management arm has been posting double-digit revenue growth, adding a second, less pricing-sensitive engine.
4. Strong cash generation and rising dividend
The fee-and-commission model is asset-light and throws off substantial free cash flow, which funds both the acquisition program and a steadily growing dividend. That combination of reinvestment plus shareholder returns is central to the long-term compounding thesis.
What are the risks to Arthur J. Gallagher & Co. (AJG)?
The most cited concern is valuation, as AJG often trades at a large premium to the broader insurance sector and to some peers, leaving little room for disappointment. Larger acquisitions such as AssuredPartners carry integration, cultural, and technology-system risk that could delay synergies. Softening property insurance pricing could trim organic growth by up to about a percentage point if it continues. Regulatory scrutiny is a growing factor, including Department of Justice attention to roll-up M&A strategies and new federal rules requiring more granular disclosure of broker commissions. Benefits-related exposure to Medicare Advantage payment rates and general economic sensitivity of client exposures round out the risk set.
How is Arthur J. Gallagher & Co. (AJG) valued? (approximate, July 2026)
A simple financial snapshot. These are approximations and refresh quarterly; for current figures see Arthur J. Gallagher & Co.'s investor relations page or your broker.
- Market cap: ~$56 billion
- Revenue (TTM): ~$13 billion
- Q1 2026 revenue: ~$4.76 billion
- Q1 2026 adjusted EPS: ~$4.47
- Trailing P/E: ~35-40x
- Dividend yield: ~1%
AJG reported roughly 28% total revenue growth in Q1 2026, blending about 5% organic growth with large contributions from acquisitions including AssuredPartners. The stock's trailing P/E in the mid-30s to around 40x sits well above the broader insurance industry average, a premium the market has historically assigned to its consistency. Forward multiples look lower on expected earnings growth, but the shares clearly price in continued execution.
Who competes with Arthur J. Gallagher & Co. (AJG)?
Mega-cap global brokers
Marsh & McLennan (MMC) and Aon (AON) are the two largest publicly traded insurance brokers by revenue and market value, sitting above Gallagher. They compete directly for large corporate and institutional accounts in brokerage, reinsurance, and consulting.
Diversified brokerage and consulting peers
Willis Towers Watson (WTW) overlaps in brokerage, benefits, and risk consulting, while Brown & Brown (BRO) is another acquisitive, fast-growing broker often compared with AJG on the roll-up growth model and valuation.
Private and regional brokers
A long tail of private equity-backed and independent regional brokers (such as Acrisure, HUB International, and USI) compete for mid-market accounts and are frequent acquisition targets, making the M&A market itself a competitive arena.
How to invest in Arthur J. Gallagher & Co. (AJG)
There are three common ways to get AJG exposure. Buy shares (or fractional shares) directly at any major broker. Hold an ETF that includes it, which spreads the position across many companies. Or build it into a focused thematic basket, so AJG sits alongside other stocks that express the same thesis.
Walnut takes the basket route. Describe a thesis where AJG fits (for example “AI infrastructure” or “dividend-growth large-caps”) and the AI proposes 5 to 6 constituents with target weights. You review the plan and fund it through your own broker when you're ready.
New to this? Start with how to invest in stocks, see how to analyze a stock with AI, or compare the best AI stock analyzers.
The bottom line on Arthur J. Gallagher & Co. (AJG)
AJG is a high-quality, acquisition-driven insurance brokerage whose durable growth has long come with a rich price tag, so the debate is almost always about valuation rather than business quality.
More on Arthur J. Gallagher & Co. (AJG)
Whether AJG is worth buying today depends more on your time horizon and what you already hold than on any single call. We walk through valuation, what would have to go right, and the risks in is AJG a buy?, and where the stock could go from here in the AJG stock forecast.
For income investors, whether AJG pays a dividend and how the payout looks is covered in does AJG pay a dividend?
Build a basket around AJG with Walnut
Use Arthur J. Gallagher & Co. as one constituent in a thematic basket Walnut's AI helps you assemble. Describe a thesis you believe in, the AI proposes the holdings and weights, and you approve before any broker order.
FAQ
What does Arthur J. Gallagher do?
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It is a global insurance brokerage and risk management firm. It helps businesses and institutions buy insurance coverage, earning commissions and fees, and its Gallagher Bassett arm administers claims. It does not primarily underwrite insurance itself, which keeps the model asset-light.
How does AJG make money?
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Most revenue comes from commissions and fees on the insurance policies it places for clients, plus fees for risk management and claims administration services. Because it brokers rather than underwrites, it avoids most direct insurance claims risk and generates strong recurring cash flow.
Why does AJG trade at such a high valuation?
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The market has historically paid a premium for AJG's long record of consistent double-digit earnings growth, mid-single-digit organic growth, and a reliable acquisition pipeline. Its trailing P/E often sits well above the broader insurance sector, reflecting that consistency rather than deep value.
What is the AssuredPartners acquisition?
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AssuredPartners is a large retail insurance brokerage that Gallagher agreed to acquire in a deal described as the largest in the brokerage industry's history. It significantly expands Gallagher's retail property-casualty footprint, with management targeting up to roughly $160 million of run-rate synergies by the end of 2026.
Who are AJG's main competitors?
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Its largest publicly traded peers are Marsh & McLennan and Aon, which are bigger by revenue, followed by Willis Towers Watson and Brown & Brown. It also competes with private brokers such as Acrisure, HUB International, and USI for mid-market accounts.
What are the biggest risks for AJG?
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Key risks include its premium valuation, integration risk on large acquisitions like AssuredPartners, softening property insurance pricing that could trim organic growth, and rising regulatory scrutiny of roll-up M&A and broker commission disclosure. Economic weakness that reduces client exposures is another factor.
Does AJG pay a dividend?
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Yes. Gallagher pays a quarterly dividend that it has raised over time, though the yield is modest at roughly 1% given the stock's growth-oriented valuation. The company balances dividend growth with heavy reinvestment into acquisitions.
Is AJG considered a growth or value stock?
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AJG is generally viewed as a steady compounder or quality-growth name rather than a value stock. It combines defensive, recurring fee revenue with an acquisition-driven growth model, which is why it typically trades at a premium multiple to the insurance sector.
Walnut is informational, not investment advice. Financial figures on this page are approximations; always verify current numbers with Arthur J. Gallagher & Co.'s investor relations page or your broker before making investment decisions.