Elite Insurance Brokers Near 52-Week Lows: Aon and Marsh
The world's two largest insurance brokers rarely trade at a discount. Here is what you need to know.

Why 52-Week Lows Matter
Charlie Munger said it simply: invert. Instead of asking why a stock is down, ask whether the business itself is impaired. If the answer is no, the question becomes whether the price is now more attractive than it was before. Markets move on sentiment, macro fears, and forced selling — none of which have anything to do with a business's ability to generate earnings five years from now. That gap between a falling price and a stable underlying value is where opportunity lives. That is exactly why the Everything Money software includes both a 52-W Low and Near 52-W Low Screener — to help members surface ideas worth researching when the market is being short-sighted. Aon and Marsh McLennan are two of the finest fee-based businesses in the world. Both are near 52-week lows. Here is why each deserves serious research right now.
Aon (AON)
Aon is the world's second largest insurance broker. It does not underwrite insurance — it brokers it. Aon sits between large corporations, governments, and institutions and the insurance market, helping clients find the right coverage and manage risk across their entire enterprise. It gets paid a fee for that work and takes on no underwriting risk whatsoever. That distinction matters. Traditional insurers have volatile earnings tied to catastrophe events and reserve development. Aon's revenue is sticky and recurring. When a multinational company renews its global insurance program through Aon, that relationship does not move easily. Switching costs are high, churn is low, and the institutional knowledge embedded in each client account compounds in value over time. The current hard market — where insurance premiums are rising across most lines — is an additional tailwind, since Aon's commissions are typically a percentage of premium. The pullback reflects broader market pressure on quality compounders, not any deterioration in the business. The company has been simplifying its structure, investing in data and analytics, and returning significant capital through buybacks. None of that has changed. The price has.
Stock Analyzer: AON
Using revenue growth rates of 4%, 6%, and 8%, net margins of 18%, 20%, and 22%, and a PE of 17 to 23 at year ten, the fair value range comes out approximately as follows: the low scenario near $260, the middle near $375, and the high near $530. At a price near its 52-week low, Aon appears to be trading below a reasonable estimate of fair value. Tag me in the community with your own numbers — I want to see where you land.
Marsh McLennan (MMC)
Marsh McLennan is the world's largest insurance broker by revenue and something broader than a pure brokerage. The company operates through four businesses: Marsh, the flagship insurance brokerage with 150 years of client relationships; Guy Carpenter, one of the world's top reinsurance brokers; Mercer, a major HR and investment consulting firm; and Oliver Wyman, one of the most respected strategy consulting firms in the world. That combination creates a revenue mix more diversified than Aon's and more resilient across economic cycles. The four businesses share a large corporate client base, creating cross-selling opportunities a pure-play broker cannot replicate. Marsh itself is the crown jewel — a Fortune 500 company does not casually move its global insurance program elsewhere. The institutional knowledge, underwriter relationships, and client risk history embedded in those accounts represent decades of compounding value. The same macro and sentiment dynamics weighing on Aon are weighing on Marsh. The underlying businesses are not weaker. The client relationships are not thinner. The competitive position is not eroding. The price is simply lower than it was.
Stock Analyzer: MMC
Using revenue growth rates of 5%, 7%, and 9%, net margins of 14%, 15%, and 16%, and a PE of 18 to 24 at year ten, the fair value range comes out approximately as follows: the low scenario near $165, the middle near $225, and the high near $310. At a price near its 52-week low, Marsh also appears to be trading at an even bigger discount to fair value. Run your own numbers and tag me — let's talk through it together.
Final Thoughts
Aon and Marsh McLennan are not flashy businesses. They show up every year for their clients, renew relationships that have existed for decades, collect recurring fees on essential services, and compound that cash flow with quiet consistency. The insurance brokerage industry has high switching costs, recurring revenue, and dominant players who have built competitive positions over generations. Both stocks are near lows for reasons that have everything to do with market sentiment and nothing to do with business quality.
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