Aon Plc Class A (AON)

AON · Financials · United States

Aon Plc Class A (AON) is a company in the Financials sector, based in United States. The stock is held in 21 ETFs we track – with its largest weight of 0.79 % in XUFI (msci-usa-financials). Anyone holding one of these ETFs also owns a small indirect stake in Aon Plc.

Above-average ETF coverage: 21 of the 95 ETFs we cover hold Aon Plc, spread across 10 indices. That puts the stock in more ETFs than 85.2 % of the 4,334 stocks we cover.

Held in21 ETFs

Highest weight0.79 %

Indices10

SectorFinancials

CountryUnited States

ISINIE00BLP1HW54

Data note 1

Price chart

Data note 2

Performance

Performance
Year to date	-14.8 %	1 year	-15.7 %
1 month	-13.4 %	3 months	-8.0 %
Calendar year 2025	-1.7 %

52W

Data note 3

Measured in euros, Aon Plc returned -13.3 % year to date and -13.7 % over one year. The gap to the dollar figures above comes from the exchange rate alone: each daily price is converted at the ECB euro reference rate for the same day.

Data note 4

Risk metrics

Max drawdown-26.6 %

Volatility p.a.24.3 %

Data note 5

Below peak-26.6 %

Beta to S&P 500-0.24

Correlation to S&P 500-0.11

The close on Sep 16, 2026 was 26.6 % below the highest close since Aug 12, 2024, reached on Mar 3, 2025. Over the last 252 trading days, on days when the S&P 500 rose or fell 1 %, Aon Plc moved on average 0.24 % in the opposite direction. The correlation of -0.11 shows how reliable that average is: the broad market explained only a small share of the daily moves.

Data note 6

Correlated with

The strongest co-movers on top, the most inverse below. Low or negative values improve portfolio diversification.

Correlated with
Instrument	r	−1 … +1
Arthur J. Gallagher & Co.	+0.79
Brown & Brown Inc.	+0.77
Marsh & McLennan Companies Inc.	+0.76
Willis Towers Watson Public Limited Company	+0.64
Tyler Technologies Inc.	+0.61
Arch Capital Group Ltd.	+0.60
Keysight Technologies Inc	-0.57
Teradyne Inc.	-0.57
nVent Electric plc	-0.57

Data note 7

Key financials

Latest reported fiscal year (FY2025, period end 2025-12-31) as filed with the SEC.

Revenue17.2 bn $

Net income3.7 bn $

Diluted EPS17.02 $

Net margin21.5 %

Return on equity39.5 %

Equity ratio18.4 %

Revenue growth+9.4 %

Revenue and profit by fiscal year
Fiscal year	Revenue	Net income	Margin
FY2023	13.4	2.6	19.2 %
FY2024	15.7	2.7	16.9 %
FY2025	17.2	3.7	21.5 %

Data note 8

Held in these ETFs

Held in these ETFs
ETF	Index	Weight	per €1,000 in the ETF
XUFI / XUFN	msci-usa-financials	0.79 %	€7.90
XDWF	msci-world-financials	0.41 %	€4.10
WFIN	msci-world-financials	0.41 %	€4.10
XDEB	msci-world-minimum-volatility	0.31 %	€3.10
XDEQ	msci-world-quality	0.20 %	€2.00
SPYL / SPY5	sp500	0.10 %	€1.00
SXR8	sp500	0.10 %	€1.00
XD9U / XD9D	msci-usa	0.09 %	€0.90
SWWD	msci-world	0.07 %	€0.70
SPYI / SPSA	msci-acwi-imi	0.07 %	€0.70
SPPW	msci-world	0.07 %	€0.70
XDWD / XDWL	msci-world	0.07 %	€0.70
WIMI	msci-world-imi	0.06 %	€0.60
SPYY	msci-acwi	0.06 %	€0.60
EUNL	msci-world	0.06 %	€0.60
IUSQ	msci-acwi	0.06 %	€0.60

Data note 9

The last column turns the weight into euros: this much of €1,000 invested in one of these funds is allocated to Aon Plc as of the fund's latest holdings list.

Weight in EUNL since 2019

Sep 30, 2019Sep 16, 2026

In EUNL, a fund tracking the MSCI World, Aon Plc had a weight of 0.12 % on Sep 30, 2019 and 0.06 % on Sep 16, 2026. Its share peaked at 0.13 % on Dec 30, 2022. The weight rises and falls with the stock's price relative to the other index members, and it also shifts when the index provider changes the composition.

Data note 10

How much Aon Plc Class A overlaps with other holdings in a portfolio is shown by the Portfolio X-Ray and the ETF overlap check.

Stocks with similar ETF exposure

Names that reach a portfolio through largely the same funds as Aon Plc — the figure counts the ETFs holding both.

Data note 11

Key figures side by side

Key figures compared with stocks of similar ETF exposure
Stock	1 year	Volatility p.a.	Net margin	Revenue growth
Aon Plc	-15.7 %	24.3 %	21.5 %	+9.4 %
Brown & Brown	-27.5 %	27.1 %	17.9 %	+22.8 %
Chubb Limited	+25.6 %	19.7 %	17.4 %	+6.5 %
CME Group	+4.9 %	21.1 %	62.5 %	+6.4 %
Mastercard Incorporated	-3.2 %	22.0 %	45.6 %	+16.4 %
Marsh & McLennan Companies	-10.2 %	22.5 %	15.4 %	+10.3 %
W. R. Berkley Corporation	-2.1 %	22.1 %	12.1 %	+7.8 %
Cboe Global Markets Inc	+15.7 %	28.3 %	–	–
Progressive Corporation	-11.4 %	25.7 %	12.9 %	+16.3 %

Return and volatility from our daily closing prices in US dollars; margin and growth from the latest SEC annual filing. Fiscal years do not all end on the same date.