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AON

S&P 500
Favorable · 68/100

Aon plc

Financials
Insurance Brokers

$313.63

1.3%

Updated Today 7:15 PM ET

Price — Past Year

▼ Down 9.4% over the last 12 months

Price 50-day average 200-day averageSource: Yahoo Finance · refreshed daily
Key Metrics

Market Cap

$67.86B

P/E

17.18x

Forward P/E (est.)

12.27x

ROE

45.1%

Revenue Growth

6.9%

EPS Growth

55.3%

Profit Margin

22.5%

FCF Yield

4.4%

Debt / Equity

1.63x

ROIC

14.0%

Interest Coverage

8.98x

Current Ratio

1.07x

Dividend Yield

1.0%

Implied Growth (rev. DCF)

4.1%

Rating Score

68/100

Technical Analysis (Educational)
Research

Technical analysis reads price and volume to judge momentum and timing. It complements the fundamentals above — it does not replace them. Here is what AON's chart says today, with each tool explained.

Trend — moving averages. A moving average is the average closing price over a window, which smooths out daily noise. AON trades near $313.63, below its 50-day average ($322.53) and 200-day average ($338.16). Price below both averages is a downtrend — momentum is against buyers for now.

Momentum — RSI. The Relative Strength Index runs 0–100 and measures how strong recent gains are versus losses. Above 70 is "overbought", below 30 "oversold". At 58 it is in neutral territory — neither stretched nor washed out.

MACD. MACD compares two moving averages to flag shifts in momentum. Its histogram is currently positive — short-term momentum is improving.

Volatility — ATR. Average True Range is the typical daily move. AON's is $7.96 (~2.5% of price), so swings of about that size each day are normal — handy for setting a stop that isn't too tight.

Support & resistance. Over the last month AON found buyers near $311.07 (support) and sellers near $340.76 (resistance); its 52-week range is $304.59–$381.00. A decisive break beyond either edge often marks the next move.

Volume. The latest session traded 1.2× the 20-day average — about normal. Rising volume on up-days suggests real buying; on down-days, real selling.

Educational information to help you read a chart — not a recommendation or a forecast. It updates daily as the price and indicators change.

Business Overview
Research

Aon plc (AON) is a large-cap company in the Insurance Brokers industry, part of the Financials sector of the S&P 500, with a market value around $67.86B.

In its latest reported year it generated about $17.18B in revenue and $3.69B in net profit.

Our model rates AON Favorable (68/100) on growth, profitability, financial health, and valuation. The summary below is built from its filed financials and current ratios and refreshes automatically.

Revenue Growth
Research

4Y CAGR

9.0%

Revenue moved from $12.19B in 2021 to $17.18B in 2025, a 9.0% compound annual growth rate. The most recent year grew a steady 6.9% year over year. Slower, mature growth is common for established businesses.

Profitability
Research

Gross Margin

47.8%

Operating Margin

25.3%

Net Margin

21.5%

ROE

45.1%

Aon plc keeps about 22.5% of each sales dollar as net profit, with a 47.8% gross margin and 25.3% operating margin. Return on equity is 45.1% and return on invested capital about 14.0%. Margins this wide usually signal pricing power or a cost advantage.

Debt Analysis
Research

Total Debt

$15.25B

Net Debt

$14.07B

Net Debt / EBITDA

3.24x

Debt / Equity

1.63x

Leverage: debt-to-equity is 1.6x, and operating profit covers interest about 9.0x, with a current ratio of 1.1x. That is elevated leverage, which raises risk if earnings or rates move against it. It carries roughly $15.25B of total debt against $1.18B of cash.

Cash Flow Analysis
Research

Operating CF

$3.48B

Free Cash Flow

$3.22B

FCF Margin

18.7%

In the latest year Aon plc produced about $3.48B of operating cash flow and $3.22B of free cash flow after capital spending. That is a free-cash-flow yield of about 4.4% on today's price. Strong cash generation funds dividends, buybacks, and reinvestment.

Valuation Analysis
Research

P/E

17.18x

P/S

4.11x

P/B

7.77x

EV / EBITDA

18.77x

AON trades at 17.2x trailing earnings (about 12.3x on estimated forward earnings), 4.1x sales, and 7.8x book value. Reverse-engineering today's price implies the market expects roughly 4.1% long-term free-cash-flow growth. That is a fairly typical valuation for a profitable company.

Metrics vs. Typical Range

Where this stock sits versus what most companies trade at.

TTM P/E
17.2xCheap
Forward P/E
12.3xCheap
P/S ratio
4.1xExpensive
Revenue growth
6.9%Strong
EPS growth
55.3%Strong
Gross margin
47.8%Average
Net margin
22.5%Strong
ROE
45.1%Strong

Typical ranges are general references (e.g., many stocks trade at ~18–26x earnings), not hard rules. Context only — not investment advice.

Sector Peer Comparison

How AON stacks up against its Financials peers — valuation, profitability, and growth versus the sector median.

In the Financials sector (76 S&P 500 companies), AON ranks #27 of 76 by our overall rating. It trades at roughly in line versus the sector on earnings (17.2x P/E vs. 15.2x median) with a higher return on equity (45.1% vs. 15.3%) and slower revenue growth (6.9% vs. 9.1%).

P/E vs sector

17.2x

median 15.2x

ROE vs sector

45.1%

median 15.3%

Growth vs sector

6.9%

median 9.1%

Sector rank

#27

of 76 by rating

CompanyP/ERev Gr.Rating
AONThis stock17.2x6.9%Favorable· 68
MRSH19.8x9.9%Neutral· 55
AJG34x24.5%Neutral· 52
WTW14.5x0.9%Favorable· 61
BRO17.4x29.3%Favorable· 65
ERIE18.2x4.8%Favorable· 61
TRV8.7x4.1%Favorable· 64
ICE19.1x7.3%Strong· 72
Financials median15.2x9.1%65/100

Valuation vs. quality map

sector medianMRSHAJGWTWBROERIETRVICEAONP/E — cheaper ←→ pricierROE — more profitable ↑

The sweet spot is upper-left: more profitable (higher ROE) for a lower P/E. Dashed lines mark the sector median.

Compare side by side

Peers are the closest Financials companies by sub-industry and size. Sector median is across all 76 S&P 500 names in the sector. Educational, not a recommendation.

5-Year Projection Model

Project revenue → earnings → price. Edit the assumptions to build your own case.

2030 price target (Base Case)

$248.22$421.97

vs. $313.63 today · expected CAGR -5%6%

Metric20262027202820292030
Revenue$18.38B$19.67B$21.05B$22.52B$24.10B
Net income$4.04B$4.33B$4.63B$4.95B$5.30B
EPS$18.94$20.26$21.68$23.20$24.82
Share price (low)$189.37$202.62$216.80$231.98$248.22
Share price (high)$321.92$344.46$368.57$394.37$421.97
CAGR (low–high)-40% / 3%-20% / 5%-12% / 6%-7% / 6%-5% / 6%

Educational model on sample fundamentals — not a forecast or investment advice. Outputs are only as good as your assumptions.

Bull Case

The case for AON:

  • High net margins (22.5%) point to pricing power or efficiency.
  • Strong return on equity (45.1%) shows capital is put to work well.
  • Healthy free-cash-flow yield (~4.4%) funds buybacks and dividends.
  • Our model's overall read is Favorable (68/100).
Bear Case

The case against AON:

  • Elevated leverage (debt/equity 1.6x) adds financial risk.
  • Like any single stock, it is exposed to competition, the economic cycle, and shifts in its end markets.
Key Risks
Research

Balance-sheet risk — debt/equity of 1.6x magnifies the impact of higher rates or weaker earnings.

Market risk — sector rotation, the economic cycle, and broad sentiment move the stock regardless of fundamentals.

Investment Thesis
Research

On balance, the fundamentals screen favourably: Aon plc is a large-cap financials business growing at a mature pace, with solid profitability, and a heavier debt load to watch. It trades at 17.2x earnings, which our model scores Favorable (68/100). Weigh this against your own goals and time horizon — this is educational information, not a recommendation.

Data notice. Fundamentals and financial statements are sourced from company filings (SEC EDGAR) and market-data providers; prices and market caps refresh on trading days and may be delayed. Ratings, projections, technical signals, and written summaries are model- or rule-generated for education and may simplify or lag the latest filings.

Not advice. Nothing on this page is investment advice or a recommendation to buy, hold, or sell any security. Do your own research and consult a licensed financial professional before investing.