Arthur J. Gallagher & Co.

AJG · Financial Services

About Arthur J. Gallagher & Co. (AJG)

Arthur J. Gallagher & Co. is a Insurance Brokers company operating in the Financial Services sector.

AJG trades on the US stock exchanges (NYSE/NASDAQ) and is classified as a large-cap stock .

Sector
Financial Services
Industry
Insurance Brokers

Key Statistics

Current Price
$276.07
Market Cap
$70.79B
52-Week High
$277.45
52-Week Low
$190.75
Sector
Financial Services
Industry
Insurance Brokers

$1,000 Invested in Arthur J. Gallagher & Co. (AJG)

1 Year
$1,066
+7%
3 Years
$1,236
+24%
5 Years
$1,770
+77%
10 Years
$6,588
+559%
Since IPO
$443,478
+44248%

How much would $1,000 invested in AJG be worth today?

What would $1,000 invested in AJG 1 year ago be worth today?

A $1,000 investment in Arthur J. Gallagher & Co. (AJG) in 2025 would be worth $1,066 as of November 2026, representing a +6.6% total return.

What would $1,000 invested in AJG 3 years ago be worth today?

A $1,000 investment in Arthur J. Gallagher & Co. (AJG) in 2023 would be worth $1,236 as of November 2026, representing a +23.6% total return.

What would $1,000 invested in AJG 5 years ago be worth today?

A $1,000 investment in Arthur J. Gallagher & Co. (AJG) in 2021 would be worth $1,770 as of November 2026, representing a +77.0% total return.

What would $1,000 invested in AJG 10 years ago be worth today?

A $1,000 investment in Arthur J. Gallagher & Co. (AJG) in 2016 would be worth $6,588 as of November 2026, representing a +558.8% total return.

What would $1,000 invested in AJG at IPO be worth today?

A $1,000 investment in Arthur J. Gallagher & Co. (AJG) at IPO would be worth $443,478 as of November 2026, representing a +44247.8% total return.

Monthly Returns Heatmap

Avg Monthly Return
+1.46%
Positive Months
300
59% of 508
Negative Months
203
40% of 508
Data Period
42+ years
508 months
Best Performers
Best month ever: Apr 2009 (+32.2%)
Best month on avg: November (+2.9%)
Worst Performers
Worst month ever: Feb 2009 (-32.7%)
Worst month on avg: January (-1.2%)

Over the past 42+ years (508 months), Arthur J. Gallagher & Co. (AJG) has averaged a monthly return of +1.46% with a median return of +1.66%. The stock had 300 positive months (59%) and 203 negative months (40%). The best month in AJG's history was April 2009 with a +32.2% return, while the worst was February 2009 at -32.7%. Historically, November tends to be the strongest month (averaging +2.9%), and January the weakest (-1.2%).

AJG's longest winning streak was 8 consecutive months of gains, while its longest losing streak was 5 consecutive months of losses. The best full year was 2000 with a cumulative return of +80.2%, and the worst was 1987 at -36.1%.

Annual Returns

Over 42 years of trading history, Arthur J. Gallagher & Co. (AJG) has delivered an average annual return of +16.09% with a median return of +13.06%. The compound annual growth rate (CAGR) is +13.69%. The stock posted gains in 29 years (69%) and losses in 13 years (31%).

AJG's best year was 2000 with a +100.72% gain, while the worst was 1987 at -33.81%. The longest streak of consecutive positive years was 9, and the longest losing streak was 3 years. AJG achieved double-digit gains (10%+) in 24 years. It suffered double-digit losses in 5 years.

Avg Return
+16.09%
Best Year
2000 (+100.72%)
Worst Year
1987 (-33.81%)
Positive Years
29/42
Year Return Start End
2026 +7.65% $256.46 $276.07
2025 -8.03% $278.85 $256.46
2024 +27.34% $218.98 $278.85
2023 +20.51% $181.71 $218.98
2022 +12.44% $161.61 $181.71
2021 +39.02% $116.25 $161.61
2020 +32.12% $87.98 $116.25
2019 +31.79% $66.76 $87.98
2018 +19.19% $56.02 $66.76
2017 +25.04% $44.80 $56.02
2016 +31.10% $34.17 $44.80
2015 -10.14% $38.03 $34.17
2014 +3.47% $36.75 $38.03
2013 +39.96% $26.26 $36.75
2012 +7.64% $24.39 $26.26
2011 +20.26% $20.28 $24.39
2010 +35.60% $14.96 $20.28
2009 -7.79% $16.22 $14.96
2008 +12.67% $14.40 $16.22
2007 -14.39% $16.82 $14.40
2006 -0.02% $16.82 $16.82
2005 -1.23% $17.03 $16.82
2004 +3.22% $16.50 $17.03
2003 +13.45% $14.54 $16.50
2002 -13.12% $16.74 $14.54
2001 +10.33% $15.17 $16.74
2000 +100.72% $7.56 $15.17
1999 +51.29% $5.00 $7.56
1998 +32.26% $3.78 $5.00
1997 +15.15% $3.28 $3.78
1996 -13.83% $3.81 $3.28
1995 +19.68% $3.18 $3.81
1994 -9.16% $3.50 $3.18
1993 +31.18% $2.67 $3.50
1992 +29.62% $2.06 $2.67
1991 -1.03% $2.08 $2.06
1990 -3.08% $2.15 $2.08
1989 +50.72% $1.42 $2.15
1988 -2.87% $1.47 $1.42
1987 -33.81% $2.22 $1.47
1986 +8.81% $2.04 $2.22
1985 +62.18% $1.26 $2.04

Frequently Asked Questions: AJG

What sector is AJG in? ▼

AJG operates in the Financial Services sector, specifically in the Insurance Brokers industry. This sector includes banks, insurance companies, asset managers, and fintech companies.

How has AJG performed historically? ▼

Over 42 years of trading history, AJG has posted gains in 29 years (69% of the time). The best year was 2000 with a +100.7% return. Past performance does not guarantee future results.

How can I invest in AJG? ▼

You can invest in AJG through any brokerage account that offers access to US stock exchanges. Popular options include commission-free brokers like Fidelity, Charles Schwab, or Robinhood (US), or international brokers like Interactive Brokers. You can buy individual shares or invest through ETFs that hold AJG.

Last updated: 11/1/2026