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    Aon (AON) Could Be 13% Undervalued On Leadership Changes And Sidecar X Launch

    Simply Wall St·08/20/2026 04:50:12
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    Aon (AON) is in focus after a cluster of leadership changes and a new product launch that together reshape how the company presents its risk and capital capabilities to clients and, by extension, to investors.

    See our latest analysis for Aon.

    These leadership changes and the launch of Sidecar X come as Aon trades at US$348.43, with a 90 day share price return of 7.47% but a 1 year total shareholder return that has declined 5.97%. This suggests that recent momentum contrasts with more subdued longer term outcomes.

    If these developments have you thinking more broadly about risk and capital focused businesses, it can be useful to scan other insurance related and financial services leaders by checking out 21 top founder-led companies

    Recent leadership shifts and the Sidecar X launch have arrived just as Aon’s share price has picked up after a weaker year. Does that set up a reasonable entry now, or does it argue for waiting on the sidelines?

    Most Popular Narrative: 12.8% Undervalued

    Aon’s most followed valuation narrative places fair value at about $399.47 per share, compared with the latest close at $348.43, which suggests a meaningful gap that investors may want to understand before reacting to the recent leadership and product news.

    The acquisition of NFP has provided Aon with high-quality middle-market EBITDA through targeted acquisitions, which is expected to contribute significantly as the year progresses, impacting revenue growth.

    Read the complete narrative. Read the complete narrative.

    Want to see what is sitting behind that valuation gap for Aon? The narrative focuses on steady mid single digit revenue growth, firm margins, and a richer earnings multiple than the sector. The key is how those ingredients are combined over several years to derive that fair value.

    Result: Fair Value of $399.47 (UNDERVALUED)

    Have a read of the narrative in full and understand what's behind the forecasts.

    However, the Aon narrative still carries real risk if softer insurance pricing persists or if higher post acquisition debt and interest costs weigh more heavily on earnings.

    Find out about the key risks to this Aon narrative.

    Another View On Aon’s Valuation

    The narrative fair value for Aon at $399.47 suggests the stock is about 12.8% undervalued. Our DCF model is more generous, with an estimate of $529.33, which implies a far wider gap to the current $348.43 price. Which perspective aligns better with your own assumptions?

    To understand how the SWS DCF model treats Aon’s future cash flows and discount rate in more detail, Look into how the SWS DCF model arrives at its fair value.

    AON Discounted Cash Flow as at Aug 2026
    AON Discounted Cash Flow as at Aug 2026

    Next Steps

    With both caution and optimism in the mix for Aon, it makes sense to review the full picture quickly and shape your own view by weighing its 3 key rewards and 1 important warning sign.

    Looking for more investment ideas beyond Aon?

    If you stop with Aon, you might miss other opportunities. Use the screeners below to quickly surface stocks that better match your preferred balance of risk and reward.

    This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.