Aon stock trades near its 52-week low after USI deal

Published on 09/28/2026 at 09:45 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Aon stock was last at USD 277.99 on September 25, 2026, near its yearly low. The USD 17.0 billion USI deal brings leverage and synergy questions.

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Aon stock (ISIN IE00BLP1HW54) was last at USD 277.99 on the NYSE on September 25, 2026, at 4:00 p.m. ET, only 0.95 percent above its 52-week low of USD 275.38. The market is weighing Aon's USD 17.0 billion cash acquisition of USI Insurance Services against the insurance broker's latest operating figures.

USI deal reshapes the investment case

As Yahoo Finance reported on August 31, 2026, Aon agreed to buy USI from KKR and other shareholders for USD 17.0 billion in cash. The transaction is expected to close in the fourth quarter of 2026, subject to regulatory approval, and Aon plans to fund it with new debt.

The strategic prize is scale in the US middle-market insurance business. The deal is projected to generate USD 395.0 million in annual run-rate net adjusted EBITDA synergies and become accretive to adjusted EPS in 2028, according to Yahoo Finance.

Quarterly results offer a counterpoint

Aon's second-quarter results, reported on July 29, 2026, showed adjusted EPS of USD 3.81 versus USD 3.80 consensus. Revenue reached USD 4.25 billion, below the USD 4.28 billion estimate, but still increased 2.20 percent from the prior-year quarter, according to MarketBeat.

That comparison matters because the deal adds a balance-sheet question to a business that was still producing year-over-year revenue growth. For investors, execution, debt reduction and the timing of the projected 2028 EPS benefit now sit alongside organic growth and margins.

Analyst targets remain above the stock

MarketBeat lists 19 analyst ratings with a Moderate Buy consensus and an average 12-month target of USD 397.47. The page also records Mizuho lowering its target from USD 398.00 to USD 366.00 on September 16, 2026, while maintaining an Outperform rating.

The average target stands 42.98 percent above the September 25 reference price of USD 277.99. That gap captures the central tension in Aon stock: analysts retain substantial valuation expectations, while the USI financing and integration burden has pushed the market value down to USD 59.0 billion.

Stock stays near its yearly low

Aon stock was last at USD 277.99 on the NYSE on September 25, 2026, with a daily change of 0.69 percent. Its 52-week range was USD 275.38 to USD 387.69, leaving the shares 28.29 percent below the high.