Aon plc (AON) fair value analysis

S&P 500 · Updated 2026-09-07

Aon plc is a professional services firm that provides risk management, insurance brokerage, and human resources consulting services to clients worldwide. The company operates across multiple continents, serving businesses, government entities, and individuals in managing their insurance, pension, and workforce strategies.

Forward Fair Value verdict

Undervalued

Based on TickrTrends' weekly Forward Fair Value model, AON is trading at more than a 25% discount to estimated fair value.

AON currently ranks #18 of 165 Financial Services stocks by discount to Forward Fair Value. It has screened as Undervalued for 3 consecutive weekly runs.

Last price: $323.09
Sector: Financial Services
12-month range: $311.51–$360.55

Derived indicators

Coarse bands from TickrTrends' weekly models; exact figures are part of the full report.

Quality grade: B
Leverage: High
Margin trend: Contracting
Revenue growth: Strong
RSI zone: Neutral
52-week position: The bottom quarter of its range
DCF cross-check: Fairly Valued

What our data shows for AON

Our model validated 17 trailing price-to-earnings windows for AON, built from quarterly earnings records.
Shares are trading in the lower third of their 12-month price range of $311.51–$360.55.
The 14-day relative strength index sits at a neutral 32.

The exact numbers are one step away

The precise Forward Fair Value dollar figure for AON
Exact discount / premium to today's price
The normalized historical P/E behind the estimate, and how many quarters support it
Forward EPS input and fiscal-year basis
Screeners and rankings across the full S&P 500 and Nasdaq universes

See the exact fair value →

How Forward Fair Value works

TickrTrends computes a Forward Fair Value for every covered stock each week: a conservatively normalized historical price-to-earnings multiple is applied to the analyst-consensus earnings estimate for the next full fiscal year. Every input window is validated for continuity and every result is screened for plausibility before publication.

Recent AON news

TickrTrends' derived news-sentiment signal for AON is currently leaning positive, computed from recent coverage.

Here’s Why SGA U.S. LCG Liquidated Its Position in Aon plc (AON) (finance.yahoo.com, 2026-09-07)
TickrTrends take: SGA U.S. LCG's liquidation of its Aon position represents a notable shift in institutional positioning that contrasts with TickrTrends' current undervalued assessment of the Financial Services company. Investors focused on valuation metrics should monitor whether such institutional exits signal changing fundamentals or represent a divergence between short-term trading activity and longer-term value indicators. The move warrants attention to whether AON's operational performance and market conditions justify maintaining an undervalued designation or if the fund's decision reflects emerging concerns about the company's prospects.
Is Aon Stock Underperforming the Dow? (finance.yahoo.com, 2026-09-07)
TickrTrends take: Aon operates in the Financial Services sector where valuation metrics play a critical role in assessing relative performance. TickrTrends currently derives an undervalued verdict for AON, which suggests the stock may be trading below levels justified by fundamental metrics, regardless of near-term performance relative to broader indices. For valuation-focused readers, monitoring whether Aon's fundamentals remain intact despite any short-term underperformance against the Dow will be essential to understanding whether the undervalued assessment holds or warrants revision.
Aon (AON) is Paying $17B for USI. Can $395M of Synergies Justify Another Debt-Funded Megadeal? (finance.yahoo.com, 2026-09-04)
TickrTrends take: Aon's acquisition of USI for $17 billion represents a significant debt-financed expansion in the insurance brokerage sector at a time when TickrTrends rates the company as undervalued. The company's ability to realize the projected $395 million in synergies will be critical to justifying the deal's cost and managing the increased leverage, making execution risk an important metric for investors to monitor alongside the current valuation assessment. Valuation-focused observers should track whether Aon can deploy this large capital deployment efficiently enough to enhance shareholder returns despite the near-term debt burden.

What people are saying

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TickrTrends weekly updates

2026-09-07 — # AON - Weekly Indicator Summary TickrTrends' derived indicators for AON show a shift in the DCF cross-check band from overvalued to fairly valued this week. The current valuation verdict remains undervalued. This change suggests a narrowing of the valuation range as assessed through TickrTrends' analysis framework for the Financial Services sector company.
2026-09-06 — TickrTrends' derived indicators for AON showed mixed movement this week. The momentum indicator downgraded from A to none, while the sector discount rank improved from 23rd to 18th within the Financial Services sector. AON maintains an undervalued valuation verdict according to current analysis.
2026-08-31 — TickrTrends initiated weekly Forward Fair Value coverage of this stock.

Frequently asked questions

Is AON stock undervalued?

Based on TickrTrends' Forward Fair Value model (updated 2026-09-07), AON is trading at more than a 25% discount to estimated fair value and screens as undervalued. The exact fair value and discount are available to subscribers.

What is AON's TickrTrends verdict?

AON's current verdict is Undervalued, refreshed with every weekly Forward Fair Value run.

How does AON compare to other Financial Services stocks?

AON ranks #18 of 165 Financial Services stocks in TickrTrends' coverage when sorted by discount to Forward Fair Value.

Is AON overbought or oversold?

AON's 14-day RSI is in neutral territory - neither overbought nor oversold.

All Financial Services fair-value coverage →

Head-to-head comparisons

AON vs AJG · AON vs LPLA · AON vs MA · AON vs MSCI · AON vs NBBK