Average Annual Return: Why Your Advisor Is Quoting the Wrong Number

Updated August 5, 2020
posted on 06-07-2019

Many investors count on compounding to help them achieve financial independence. Yet many people confuse it for "average return." Brokers (who often quote the latter) don’t help the matter either. Why is there so much confusion surrounding this financial process?

CAGR Basics 

Imagine you have $10,000. This year, your $10,000 grows 100%, leaving you with $20,000. The following year, your investment falls 50%, taking you back to your original amount ($10,000).

Over those two years, your annualized gain is zero (you've neither made nor lost any money). The zero percent you received is known in the financial world as the Compound Annual Growth Rate (CAGR).

But an advisor who’s eager to put some positive spin on the situation may tell you that your return is actually 25%. That number is called the “average annual return”, and it’s actually very misleading: If you’d made 25%, wouldn't your portfolio be bigger than when it started? 

In real life, you only realize the CAGR, not the average annual return. 

The Effects of Market Volatility 

The culprit is market volatility. Markets – and the returns investors expect from them – don’t just go up in a nice, even pattern. The impact of negative returns (and the distribution of returns) have significant negative effects on the realized returns that investors experience. The more volatility experienced by the market, the larger the drop in the compound return.

It turns out there are two factors that contribute to volatility: negative returns and the distribution of the returns.

Negative Returns

Let's first look at the impact negative returns have on your portfolio. You’ve worked hard to save $100,000 and you want to invest it in the market. In the first year, you earn 15% on your $100,000,  increasing the value of your portfolio to $115,000. 

In the second year, the market drops and your portfolio falls 15%. How much is your portfolio worth now? If you guessed $100,000, then you've just fallen for “compounding's revenge.” Sure, your average annual return breaks even at 0.0%, but if you actually stop and do the math, you'll discover that you've actually lost money. 

How? After the 15% drop, your portfolio is worth $97,750. Your compound annual return is -1.13%.

What if you reverse the gain and loss on your portfolio? In the first year, you lose 15%, reducing your portfolio from $100,000 to $85,000. In the second year, you realize a gain of 15% on your $85,000. Now your portfolio is worth $97,750.00. You’d still enjoy a -1.13% compound annual return.

So what's going on? Whenever you lose money, it takes a greater return to just break even. If you lose 20%, you must earn 25% to get back to where you began. The more you lose, the worse the situation gets. Lose 50% and you’ll have to double your money (grow it by 100%) to even things out. 

Focus on Positive Effects of Compounding 

Most investors focus on what they can gain from their investment in the market: the positive effect of compounding. Investors who consistently beat the market recognize that they must first protect their capital and not lose their money. Once their plan to lower their downside risk is in place, they can focus on generating positive returns that can be compounded over time.

This is the reason Warren Buffett's first rule of investing is to never lose money. He fully understands the negative effect that this has on your portfolio.

Distribution of Returns

The second reason why average annual returns are so misleading: distribution of returns. For each illustration, the average return over the three years is 10%. As the distribution of returns widen, the compound returns shrink.

The first scenario is very basic: Each year, your portfolio grows 10%. At the end of the three years, both your compound return and your average annual return are 10%.
But look at the second, third, and fourth scenarios. Your average annual return is still 10%, but the actual value of each portfolio is lower.

In the second scenario, you still have an average annual return of 10% but the value of the portfolio is lower. That's due to a wider distribution of returns. When you add scenarios 3 and 4 to the picture, a trend emerges: The greater the distribution of returns, the lower the compound returns you receive.

example distribution of returns

The Combined Effect

When you combine the effect of negative returns with the impact of the distribution of returns, this blow to your portfolio can be devastating. In each of the cases below, our investor experienced two good years followed by one bad year. As the scenarios progress, the good years get better and the bad year is even worse. As you can see, the effect of the distribution of the returns plus the negative return caused the compound return to be much lower than expected.

impact negative returns distribution

Historically, at least half of the time, the market is either up or down by 15%. This means that you should expect negative returns and a wider distribution of returns each year. If you want to do well in the market, any action you can take to minimize compounding's negative effects will do a lot to enhance your portfolio's returns.
 

Dealing with the Revenge of Compounding

As you might suspect by now, the best way to deal with compounding's revenge is to follow Warren Buffett's first rule: Don’t lose money. 

Instead of asking yourself "What are the hottest stocks to buy," focus on improving your portfolio and reducing your risk.

1. Use Proven Capital Management Techniques 

When the market is struggling – and the effect of negative compounding has serious consequences – be sure to employ proven capital management techniques. Properly-sized positions, trailing stops, and protective puts are three great methods that will help lower your risk of losses.

2. Protect Your Portfolio

Greater volatility in the stock market indicates that the odds of a losing year are higher. When volatility increases, the risk of negative returns rises alongside it. When you see higher volatility in the market, it is telling you to take additional precautions and protect your portfolio. 

Be ready to quickly close out positions. Frequently rebalance your portfolio to capitalize on the short-term cycles of a more volatile market. If you have a nice gain, sell half of that position to capture some profit and free capital for other low risk investments. Be sure to move your stop up to above your entry so you lock in the remaining profit.

Recognizing compounding's revenge is the first step to reducing your risk and enhancing your returns. Step up to the table and take control. After all, it is your money.

Use Our CAGR Calculator 

Our easy to use CAGR Calculator can help you project the CAGR you need to achieve investment goals or measure the return on existing investments.