“Someone’s sitting in the shade today because someone planted a tree a long time ago.”
— Warren Buffett
A long-term investment in Arthur J. Gallagher & Co. (NYSE: AJG) produced a striking result over the past two decades. Using a starting date of 09/05/2006 and an ending date of 09/03/2026, a $10,000 investment with dividends reinvested would have grown to $179,021.98, according to calculations from the Dividend Channel DRIP Returns Calculator. That equates to a total return of 1,688.80% and an average annual return of 15.51%.
The result underscores a central feature of compounding: over extended holding periods, both business performance and disciplined dividend reinvestment can matter far more than short-term market fluctuations. For AJG, the combination of share price appreciation and a steady stream of cash distributions materially increased ending wealth.
AJG 20-Year Return Summary
| Start date: | 09/05/2006 |
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| End date: | 09/03/2026 | ||||
| Start price/share: | $26.69 | ||||
| End price/share: | $266.66 | ||||
| Starting shares: | 374.67 | ||||
| Ending shares: | 670.82 | ||||
| Dividends reinvested/share: | $33.48 | ||||
| Total return: | 1,688.80% | ||||
| Average annual return: | 15.51% | ||||
| Starting investment: | $10,000.00 | ||||
| Ending investment: | $179,021.98 | ||||
What Drove the Return?
The headline number reflects more than a rising share price. AJG’s ending value was shaped by two distinct sources of return:
- Capital appreciation: the stock price increased from $26.69 to $266.66 per share over the period.
- Dividend reinvestment: cash dividends were assumed to be reinvested on each ex-dividend date, increasing the share count from 374.67 to 670.82.
That increase in share count is especially important. Reinvested dividends added nearly 296 shares over time, allowing subsequent dividends and future price gains to compound on a larger base. This is a practical illustration of why total return, rather than price return alone, is the more complete way to evaluate long-term equity performance.
Why Dividend Reinvestment Matters
Over the 20-year span shown above, Arthur J. Gallagher & Co. paid $33.48 per share in cumulative dividends. When those distributions are automatically reinvested, they purchase additional shares that can themselves generate future dividends and participate in further share price appreciation. The compounding effect becomes more powerful as the holding period lengthens.
In this calculation, dividends are assumed to be reinvested at the closing price on the ex-dividend date. That methodology is standard for many long-term return analyses and provides a consistent framework for comparing dividend-paying stocks across time.
Current Yield and Yield on Cost
Based on the most recent annualized dividend rate of $2.80 per share, AJG currently yields approximately 1.05%. That figure describes the income return available at the recent market price.
A different lens is yield on cost, which compares the current annual dividend to the original purchase price. Using the 2006 entry price of $26.69 per share, the current $2.80 annualized dividend translates to a yield on cost of 3.93%.
In concise terms:
- Current yield = current annual dividend divided by current share price
- Yield on cost = current annual dividend divided by original purchase price
Yield on cost can be a useful retrospective measure of dividend growth over time, although it should not be confused with the yield available to a new buyer today.
A Brief Look at the Business Context
Arthur J. Gallagher is best known as an insurance brokerage, risk management, and consulting company. Businesses with brokerage-oriented models can benefit from recurring client relationships, broad distribution networks, and acquisition-driven expansion. Those characteristics have historically made the sector attractive to long-term investors seeking a blend of defensive business exposure and steady cash generation.
That context helps explain why AJG has been able to pair dividend payments with substantial long-term share price appreciation. The market often assigns durable valuations to companies that combine recurring revenue characteristics, disciplined capital allocation, and consistent earnings growth over extended periods.
Key Takeaways From This AJG Investment
- A $10,000 investment in AJG in 2006 grew to $179,021.98 by 09/03/2026, assuming dividends were reinvested.
- The total return was 1,688.80%, equal to an average annual return of 15.51%.
- Dividend reinvestment meaningfully increased the ending share count and amplified compounding.
- The result highlights the importance of evaluating long-term total return, not just headline price performance.
“Value investing means really asking what are the best values, and not assuming that because something looks expensive that it is, or assuming that because a stock is down in price and trades at low multiples that it is a bargain.” — Bill Miller
