Aon plc AON
equity
Price History
Time underwater
How far below its previous all-time high the price sat, each month. 0% means a new high.
Worst drawdown: −61%, peaking Jun 1998 and bottoming Nov 2002 — 113 months below the prior high before recovering.
DCA Backtest
- Invested
- $50,000
- Value today
- $708,656
- Return
- +1317.3%
- Months invested
- 500
Scenarios
Inflation — the same contributions merely keeping pace with CPI would be $90,910 today, so the real (inflation-adjusted) return is +679.5%.
Lump sum instead — $50,000 all at once in Jan 1985: $2,945,424 (+5790.8%) — lump sum came out ahead.
Worst timing — same monthly amount started at the all-time high (Feb 2025): $1,907 on $1,900 invested (+0.4%).
⚠ Price returns only — dividends are not included. This understates the true return of dividend-paying shares, and any comparison against crypto (which pays no dividends) is biased against equities by roughly the dividend yield, compounded.
If this saved you a spreadsheet — buy me a coffee.
Every start month at once
Each cell is the return-to-date of £/$/€100-a-month DCA started that month. Click a cell to load it in the backtest above. The ringed cell is the all-time-high start — the worst timing scenario.
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About Aon plc
Aon plc is a British-American professional services firm. The company operates through two divisions: Risk Capital, which provides brokerage and consulting services for risk management, insurance, and reinsurance, and Human Capital, which provides services related to health insurance, retirement plans, pension plans, and talent advisory. (Wikipedia)
It's a listed company categorised under financials and insurance brokers, with a market cap of about $74.7B.
It rates Medium-Low Risk at 2.1/5, meaning the rated factors are mostly sound, with one or two areas worth watching.
What pushes the score up: sector / regulatory (4.0/5) and earnings quality (3.0/5).
Scoring well: leverage / financial at 1.0/5.
Not yet researched: concentration, governance. These are excluded from the score rather than guessed, so the real risk may be higher than what’s shown.
Ratings summarise sourced facts against fixed rules — not investment advice, and no substitute for your own diligence.
Risk Profile
- Annualised volatility (3yr)2/521.7
- Max drawdown from ATH3/561.1
- Beta vs S&P 5002/50.75
- Avg daily $ volume1/5537.2m
- Float % of shares outstandingnot yet researched
- Debt / equity1/51.6
- Interest coverage (EBIT / interest)not yet researched
- 3yr EPS volatility3/525.8
- Largest customer, % of revenuenot yet researched
- Geographic revenue concentrationnot yet researched
- Board independence %not yet researched
- Share structurenot yet researched
- Litigation / audit historynot yet researched
- Sector regulatory exposure4/5high
Linked Assets
Same sector, or return-correlated — worth knowing what else might move if this one does.
- Marsh McLennan MRSH+62% (moderate)same category: financials, insurance brokers
- Willis Towers Watson WTW+51% (moderate)same category: financials, insurance brokers
- Arthur J. Gallagher & Co. AJG+44% (moderate)same category: financials, insurance brokers
- Brown & Brown BRO+39% (weak)same category: financials, insurance brokers
- Erie Indemnity ERIE+18% (weak)same category: financials, insurance brokers
- Corpay CPAY+50% (moderate)same category: financials
- KKR & Co. KKR+48% (moderate)same category: financials
- Blackstone Inc. BX+48% (moderate)same category: financials