May 5, 2026
A look at the math behind Bristol Gate’s dividend growth strategy
Most people think of dividends as a nice little bonus — a small payment you get just for owning a stock. But what if those small payments, when they keep growing year after year, actually have a massive hidden effect on your wealth? That’s exactly what Bristol Gate’s research team set out to prove — and the results are striking.
What Are Dividends, and Why Do They Grow?
When a company earns a profit, it can share some of that money with its shareholders. That payment is called a dividend. Some companies don’t just pay the same dividend every year — they increase it. A company that raises its dividend regularly is sending a strong signal: it’s financially healthy, earning more money, and confident about its future.
The Big Idea: Double Exponential Growth
Here’s where things get interesting. You’ve probably heard of compound interest — the idea that your money earns returns, and then those returns earn returns of their own. That kind of growth is called exponential growth, and it’s already powerful.
But Bristol Gate’s researchers showed that dividend growth does something even more dramatic. When you reinvest your dividends (use them to buy more shares), and the dividend itself is also growing each year, the two effects stack on top of each other. The math shows this creates what’s called double exponential growth — essentially, exponential growth on top of exponential growth.
Think of it this way: imagine a snowball rolling downhill. Compound interest is like the snowball getting bigger as it picks up more snow. Double exponential growth is like the hill getting steeper at the same time. The snowball doesn’t just grow — it grows faster and faster.
Why Does This Matter for Investors?
The paper’s key takeaway is simple: if you pick stocks with the fastest-growing dividends and hold them for a long time, you should end up with significantly more wealth than if you picked slower-growing dividend stocks — even if everything else about the investments is the same.
The research team backed this up with real historical data from the S&P 500. They found that companies in the top 25% for dividend growth had a median growth rate of about 20% per year, while those in the bottom 25% grew dividends at only about 3.5% per year. Over many years, that gap leads to a huge difference in total returns, thanks to the double exponential effect.
The Catch — and Bristol Gate’s Solution
There is one practical problem. If a company keeps growing its dividend by 15–20% a year for a long time, the dividend yield (the dividend as a percentage of the stock price) can balloon to unrealistic levels. For example, a 2% starting yield with 15% annual growth and flat stock prices would mushroom to over 16% after 15 years — a level that’s almost never seen in the real world.
Bristol Gate’s solution is straightforward: rebalance the portfolio on a regular schedule, such as every five years. When you rebalance, you sell the stocks whose yields have gotten too high and buy new high-growth dividend stocks at fresh, realistic starting yields. This keeps the portfolio grounded while still capturing most of the double exponential benefit. Their analysis showed that this approach preserves the vast majority of the wealth-building advantage.
The Bottom Line
This research provides a mathematical foundation for a powerful investment idea:
- Dividend growth isn’t just a sign of a healthy company — it’s an active engine of wealth creation.
- The effect of growing dividends, reinvested over time, is far stronger than most people’s intuition would suggest, because human brains naturally think in straight lines, not in curves that accelerate.
- Patience matters. The double exponential effect only really kicks in over longer time horizons. The longer you stay invested, the more dramatic the advantage becomes.
- Smart rebalancing lets you capture this powerful growth effect without running into impractical yield levels.
In short: find companies that keep raising their dividends, reinvest those dividends, be patient, and let the math do the heavy lifting.
This post summarizes the Bristol Gate whitepaper “Income Growth, Total Return, and Their Double Exponential Interaction” by Poorya Ferdowsi and Mo Vakil.
Important disclosures
There is a risk of loss inherent in any investment; past performance is not indicative of future results. Prospective and existing investors in Bristol Gate’s pooled funds or ETF funds should refer to the fund’s offering documents which outline the risk factors associated with a decision to invest. Separately managed account clients should refer to disclosure documents provided which outline risks of investing. Pursuant to SEC regulations, a description of risks associated with Bristol Gate’s strategies is also contained in Bristol Gate’s Form ADV Part 2A located at www.bristolgate.com/regulatory-documents.
This piece is presented for illustrative and discussion purposes only. It should not be considered as personal investment advice or an offer or solicitation to buy and/or sell securities and it does not consider unique objectives, constraints, or financial needs of the individual. Under no circumstances does this piece suggest that you should time the market in any way or make investment decisions based on the content. Investors are advised that their investments are not guaranteed, their values change frequently, and past performance may not be repeated. References to specific securities are presented to illustrate the application of our investment philosophy only, do not represent all of the securities purchased, sold or recommended for the portfolio, it should not be assumed that investments in the securities identified were or will be profitable and should not be considered recommendations by Bristol Gate Capital Partners Inc. A full list of security holdings is available upon request. For more information contact Bristol Gate Capital Partners Inc. directly. The information contained in this piece is the opinion of Bristol Gate Capital Partners Inc. and/or its employees as of the date of the piece and is subject to change without notice. Every effort has been made to ensure accuracy in this piece at the time of publication; however, accuracy cannot be guaranteed. Market conditions may change and Bristol Gate Capital Partners Inc. accepts no responsibility for individual investment decisions arising from the use of or reliance on the information contained herein. We strongly recommend you consult with a financial advisor prior to making any investment decisions. Please refer to the Legal section of Bristol Gate’s website for additional information at bristolgate.com.
A Note About Forward-Looking Statements
This report may contain forward-looking statements including, but not limited to, statements about the Bristol Gate strategies, risks, expected performance and condition. Forward-looking statements include statements that are predictive in nature, that depend upon or refer to future events and conditions or include words such as “may”, “could”, “would”, “should”, “expect”, “anticipate”, “intend”, “plan”, “believe”, “estimate” and similar forward-looking expressions or negative versions thereof.
These forward-looking statements are subject to various risks, uncertainties and assumptions about the investment strategies, capital markets and economic factors, which could cause actual financial performance and expectations to differ materially from the anticipated performance or other expectations expressed. Economic factors include, but are not limited to, general economic, political and market factors in North America and internationally, interest and foreign exchange rates, global equity and capital markets, business competition, technological change, changes in government regulations, unexpected judicial or regulatory proceedings, and catastrophic events. Readers are cautioned not to place undue reliance on forward-looking statements and consider the above-mentioned factors and other factors carefully before making any investment decisions. All opinions contained in forward-looking statements are subject to change without notice and are provided in good faith. Forward-looking statements are not guarantees of future performance, and actual results could differ materially from those expressed or implied in any forward-looking statements. Bristol Gate Capital Partners Inc. has no specific intention of updating any forward-looking statements whether as a result of new information, future events or otherwise, except as required by securities legislation.
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