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Aon plc (AON)

Red

Financials · As of 17 July 2026

Price chart — 52 weeks

AON · 367.21 (last weekly close) SMA 10w SMA 40w
290300310320330340350360370380AugSepOctNovDec2026FebMarAprMayJunJul10.0MWeek of Jul 21, 2025 · O 356.15 · H 381.00 · L 350.75 · C 372.89 · Vol 8.5MWeek of Jul 28, 2025 · O 371.30 · H 373.55 · L 351.44 · C 353.46 · Vol 8.3MWeek of Aug 4, 2025 · O 353.78 · H 367.01 · L 351.58 · C 366.40 · Vol 6.2MWeek of Aug 11, 2025 · O 366.95 · H 372.46 · L 360.25 · C 367.01 · Vol 8.1MWeek of Aug 18, 2025 · O 366.08 · H 378.70 · L 365.21 · C 375.10 · Vol 5.9MWeek of Aug 25, 2025 · O 374.11 · H 376.69 · L 364.03 · C 367.00 · Vol 4.9MWeek of Sep 1, 2025 · O 367.63 · H 375.87 · L 365.96 · C 370.54 · Vol 4.0MWeek of Sep 8, 2025 · O 370.54 · H 374.05 · L 361.08 · C 371.95 · Vol 5.3MWeek of Sep 15, 2025 · O 371.90 · H 373.60 · L 348.64 · C 351.32 · Vol 8.8MWeek of Sep 22, 2025 · O 350.56 · H 358.99 · L 349.15 · C 356.08 · Vol 6.1MWeek of Sep 29, 2025 · O 355.01 · H 365.98 · L 351.80 · C 363.81 · Vol 4.8MWeek of Oct 6, 2025 · O 364.07 · H 370.31 · L 359.18 · C 360.15 · Vol 4.4MWeek of Oct 13, 2025 · O 357.11 · H 360.82 · L 337.92 · C 346.60 · Vol 6.5MWeek of Oct 20, 2025 · O 347.22 · H 347.22 · L 337.34 · C 337.73 · Vol 5.2MWeek of Oct 27, 2025 · O 337.00 · H 348.61 · L 324.28 · C 340.68 · Vol 8.9MWeek of Nov 3, 2025 · O 339.42 · H 348.18 · L 331.14 · C 346.32 · Vol 6.3MWeek of Nov 10, 2025 · O 343.34 · H 354.24 · L 341.02 · C 350.13 · Vol 5.5MWeek of Nov 17, 2025 · O 350.00 · H 353.00 · L 339.17 · C 346.51 · Vol 7.2MWeek of Nov 24, 2025 · O 347.23 · H 355.62 · L 342.80 · C 353.92 · Vol 3.4MWeek of Dec 1, 2025 · O 352.69 · H 355.48 · L 340.19 · C 345.20 · Vol 4.7MWeek of Dec 8, 2025 · O 343.23 · H 354.12 · L 336.43 · C 353.79 · Vol 5.3MWeek of Dec 15, 2025 · O 353.71 · H 355.33 · L 349.91 · C 350.04 · Vol 6.4MWeek of Dec 22, 2025 · O 348.87 · H 358.14 · L 348.00 · C 356.65 · Vol 2.0MWeek of Dec 29, 2025 · O 356.66 · H 358.55 · L 342.75 · C 344.27 · Vol 2.1MWeek of Jan 5, 2026 · O 340.91 · H 355.43 · L 339.39 · C 350.80 · Vol 4.7MWeek of Jan 12, 2026 · O 351.00 · H 353.93 · L 340.60 · C 343.86 · Vol 4.9MWeek of Jan 19, 2026 · O 341.38 · H 342.97 · L 330.30 · C 338.69 · Vol 5.7MWeek of Jan 26, 2026 · O 339.32 · H 351.80 · L 325.90 · C 349.64 · Vol 7.9MWeek of Feb 2, 2026 · O 353.14 · H 358.04 · L 340.58 · C 342.04 · Vol 6.7MWeek of Feb 9, 2026 · O 340.76 · H 343.92 · L 304.59 · C 321.70 · Vol 15.9MWeek of Feb 16, 2026 · O 324.85 · H 329.57 · L 320.00 · C 325.07 · Vol 5.3MWeek of Feb 23, 2026 · O 324.71 · H 337.97 · L 312.58 · C 335.47 · Vol 7.5MWeek of Mar 2, 2026 · O 332.02 · H 344.65 · L 331.71 · C 340.60 · Vol 7.5MWeek of Mar 9, 2026 · O 341.55 · H 342.38 · L 313.81 · C 321.41 · Vol 7.4MWeek of Mar 16, 2026 · O 322.60 · H 333.26 · L 314.80 · C 325.63 · Vol 7.4MWeek of Mar 23, 2026 · O 327.99 · H 328.84 · L 312.05 · C 313.66 · Vol 6.0MWeek of Mar 30, 2026 · O 316.45 · H 328.79 · L 315.66 · C 323.14 · Vol 4.8MWeek of Apr 6, 2026 · O 321.21 · H 330.93 · L 307.81 · C 312.57 · Vol 7.2MWeek of Apr 13, 2026 · O 315.00 · H 337.98 · L 313.00 · C 331.80 · Vol 6.6MWeek of Apr 20, 2026 · O 331.45 · H 336.89 · L 318.64 · C 321.14 · Vol 5.0MWeek of Apr 27, 2026 · O 319.53 · H 328.95 · L 307.02 · C 311.51 · Vol 8.2MWeek of May 4, 2026 · O 309.93 · H 317.49 · L 306.52 · C 312.79 · Vol 7.1MWeek of May 11, 2026 · O 312.42 · H 321.69 · L 308.51 · C 317.22 · Vol 8.3MWeek of May 18, 2026 · O 317.51 · H 330.22 · L 315.00 · C 324.78 · Vol 7.0MWeek of May 25, 2026 · O 326.27 · H 326.38 · L 314.54 · C 316.06 · Vol 6.7MWeek of Jun 1, 2026 · O 313.78 · H 331.13 · L 311.07 · C 328.53 · Vol 7.0MWeek of Jun 8, 2026 · O 325.49 · H 340.76 · L 321.55 · C 335.31 · Vol 8.0MWeek of Jun 15, 2026 · O 336.71 · H 338.21 · L 317.48 · C 317.74 · Vol 7.3MWeek of Jun 22, 2026 · O 316.51 · H 330.36 · L 313.62 · C 328.69 · Vol 14.2MWeek of Jun 29, 2026 · O 324.97 · H 357.54 · L 322.26 · C 357.46 · Vol 6.1MWeek of Jul 6, 2026 · O 356.71 · H 366.45 · L 351.38 · C 356.94 · Vol 4.3MWeek of Jul 13, 2026 · O 360.12 · H 375.92 · L 350.46 · C 367.21 · Vol 6.0M367
Weekly candles over the last 52 weeks, split-adjusted, with 10- and 40-week moving averages; trading volume along the bottom. As of Jul 13, 2026.

OakBag’s model puts the fair value of Aon plc (AON) at about $311.00, against a recent price of $367.21 — a margin of safety of -18%. On that basis the traffic light is set so it looks expensive or risky. The estimate blends up to 4 independent valuation methods and is benchmarked against other Financials names. It is a model estimate for research, not a price target or a recommendation.

Fair value vs. price

Current price
$367.21
Estimated fair value
$311.00
Margin of safety
-18%
−50%0+50%

How the fair value is built

Peer P/E$404.16
Peer EV/EBITDA$354.76
ML-justified$267.23
Cash-flow DCF$223.86
Graham number$536.22

How is this computed?

Why not green?

  • It looks cheap largely because of its high quality. Stripping the quality premium out, the margin of safety is only -34% — below the buy bar (quality is already rewarded in the score).

Knock-out safety checks passed

  • Bankruptcy risk (Altman Z″)
  • Negative equity
  • Excessive leverage
  • Illiquid
  • Penny / micro-cap
  • Stale fundamentals
Piotroski F-score
7 / 9
Altman Z-score
4.29
Beneish M-score
-2.36

Quality & factor profile

Value -0.32
Quality +0.53
Profitability +0.35
Momentum -0.59
Growth -0.03
Low volatility +0.45

See the full analysis

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Frequently asked questions

Is Aon (AON) undervalued?

On OakBag’s model, Aon plc looks expensive or risky: the estimated fair value is $311.00 versus a recent price of $367.21, a margin of safety of -18%. This is a model estimate, not investment advice.

What is AON’s fair value estimate?

OakBag estimates Aon plc’s fair value at about $311.00, blending up to 4 methods — peer P/E, price-to-book, peer EV/EBITDA, a machine-learning valuation and a cash-flow DCF — clipped to a sensible band and taken at the median.

What is margin of safety?

Margin of safety is how far below the estimated fair value the price sits: (fair value − price) ÷ fair value. Here it is -18%. A positive number means the model sees the stock as cheap; OakBag only turns a stock green above +15%.

Does a green verdict mean I should buy AON?

No. OakBag is an educational and research tool, not investment advice. The traffic light is an automated model output based on third-party data that may be delayed or inaccurate. Always do your own research.

Other Financials stocks

An educational and research tool — not investment advice. OakBag is an educational and research tool, not investment advice. Scores and rankings are automated model outputs based on third-party data and may be inaccurate or delayed. Nothing here is a recommendation to buy or sell any security. Investing involves risk, including possible loss of principal.