Here is something that surprises a lot of people: you can have a positive average rate of return on your account and still end up losing money. It sounds impossible, but it comes down to a simple math trick that account statements almost never explain. Once you see the example below, you will never look at an “average return” the same way again, and you will know exactly what question to ask the next time someone shows you a performance number.
Average Return vs. Actual Return
When you look at an account statement or research a fund online, you usually see a performance history showing the average rate of return over one, three, five, or more years. But an average is exactly that, just an average. It does not necessarily reflect what actually happened to your money.
An average return is calculated by adding up each year’s return and dividing by the number of years. An actual return, sometimes called a real or actualized return, looks at what your account balance actually did from the starting point to the ending point. These two numbers can be very different, and the gap between them gets bigger the more volatile the returns are along the way.
To be clear, this is not a case of one number being “wrong” and the other being “right.” Both are mathematically accurate descriptions of the same data, they are just answering two different questions. Average return answers “what did the typical year look like?” Actual return answers “how much money do I actually have?” For anyone planning around a specific dollar figure, whether that is a retirement date or an income goal, the second question is almost always the one that matters more.
A Simple Four-Year Example
Let’s say you start with $100,000 and experience the following returns over four years.
| Year | Return | Ending Balance |
|---|---|---|
| 1 | -20% | $80,000 |
| 2 | +20% | $96,000 |
| 3 | -60% | $38,400 |
| 4 | +100% | $76,800 |
Add up those four yearly returns: -20% + 20% – 60% + 100% = 40%. Divide that by 4 years, and you get an average annual return of 10%. Most people seeing a 10% average return would assume they made money, and made a decent amount of it.
This example is deliberately dramatic to make the point clear, but the underlying math applies at any scale. Even a much milder sequence of ups and downs will show some gap between the average return and the actual return, it just will not be as extreme as the 33-point swing shown here.
But look at the actual ending balance: $76,800, down from the $100,000 you started with. That is an actual return of negative 23.2%, not a positive 10%. The 10% average return told a completely different story than what actually happened to the money.
Why This Happens
The math trick here comes down to how percentage losses and gains interact. A 20% loss requires a 25% gain just to get back to even, not a 20% gain. A 60% loss requires a 150% gain to fully recover. Losses simply do the damage faster than equivalent-looking gains can undo it, because each percentage is applied to a smaller and smaller starting balance after a loss.
Averaging returns treats every year’s percentage as if it applies to the same original balance, which is not how money actually compounds. That is exactly why a string of average-looking numbers can hide a real result that looks nothing like the average.
Here is a table showing just how lopsided this relationship becomes as losses get bigger.
| Loss | Gain Needed to Fully Recover |
|---|---|
| -10% | +11.1% |
| -20% | +25% |
| -33% | +50% |
| -50% | +100% |
| -60% | +150% |
| -80% | +400% |
Notice how quickly the required recovery gain accelerates. A 50% loss does not need a 50% gain to recover, it needs a full 100% gain, a complete doubling of what is left. This is exactly why avoiding large losses in the first place tends to matter more for long-term results than chasing the highest possible average return.
A portfolio that never loses more than 10% or 20% in a bad year will always have an easier recovery path than one that occasionally drops 50% or more, even if the second portfolio’s average return looks higher on paper over a full market cycle.
Applying This to the Real S&P 500
This is not just a hypothetical example. The same gap shows up in real market history. Looking at the S&P 500 from 2000 to 2018, a period that includes both the dot-com crash and the 2008 financial crisis, the picture looks different depending on which number you use.
| Measurement | Result |
|---|---|
| Average of each year’s return | 4.4% per year |
| Actual return experienced (based on $100,000 growing to $169,000) | 2.8% per year |
The actual return of 2.8% is 36.3% lower than the 4.4% average return would suggest. A $100,000 investment held from 2000 through 2018 did grow to $169,000, which is a real, solid result, but it happened at a meaningfully slower pace than the simple average of the yearly numbers implies.
This particular stretch of market history includes two of the sharpest downturns in recent memory, the dot-com crash in the early 2000s and the 2008 financial crisis. Those large drops are exactly the kind of events that widen the gap between the average and the actual return, for the same reason shown in the four-year example above: big losses require disproportionately larger gains to fully recover, and that math shows up in real historical data just as clearly as it does in a simplified illustration.
What to Ask When You Review Your Statements
The next time you review an account statement or a fund’s performance history with an advisor, it is worth asking directly: is this an average return, or an actual return? Most reputable statements do show the real return, but it is a question worth asking rather than assuming.
Understanding the difference matters most when volatility is high, since that is exactly when the gap between average and actual returns widens the most. A steady, low-volatility account will have average and actual returns that look nearly identical. A volatile account, even one with an impressive-looking average, can hide a much weaker real result underneath. This is one of the reasons some retirees choose to shift a portion of their savings into more stable, lower-volatility options as they get closer to needing the income, precisely to shrink that gap between what the average promises and what the account actually delivers.
This concept matters just as much in retirement, when you are drawing income out of a portfolio at the same time it is experiencing these swings. While you are still working and adding new contributions every paycheck, a rough year has time to recover before you actually need the money.
Once you are retired and withdrawing from the account instead of adding to it, a bad year does double duty against you: the account loses value at the same time you are pulling cash out of it. That combination makes the real return you experience even more important than the average return advertised on a fund fact sheet.
If you want help reviewing your own accounts to see your actual, real-world returns rather than just the headline average, you can schedule a personal meeting and we will go through your statements together.
Frequently Asked Questions
Can you really lose money with a positive average return?
Yes. As shown in the four-year example above, a 10% average annual return can still correspond to an actual loss of 23.2% on your original balance, depending on the order and size of the individual yearly returns.
Why does a 20% loss need more than a 20% gain to recover?
Because the gain is calculated on a smaller balance after the loss. A $100,000 account that drops 20% falls to $80,000. To get back to $100,000, that $80,000 needs to grow by 25%, not 20%.
How do I know if my statement is showing average or actual returns?
Ask directly. Most reputable statements clearly label actual or real returns, but if it is not obvious, ask your advisor or the fund provider to clarify which figure you are looking at.
Does this gap between average and actual returns matter more for some accounts than others?
Yes. The gap widens with volatility. A steady account will show average and actual returns that are nearly the same. A highly volatile account can show a large gap, even with an attractive-looking average.
Why does this matter more in retirement than during my working years?
When you are withdrawing income from a portfolio at the same time it experiences ups and downs, the actual sequence and size of returns has a direct impact on how long your money lasts, which is why understanding real versus average returns becomes especially important once you start drawing on your savings.
Is average return the same thing as annualized return?
Not necessarily. A simple average adds up each year’s percentage return and divides by the number of years. An annualized actual return accounts for how the balance compounds over time, which is why the two figures can differ significantly, especially when returns are volatile.
What should I focus on instead of average return?
Focus on your actual starting and ending balance over a given period, and on avoiding large losses in the first place. As the recovery table above shows, avoiding a big drawdown is often more valuable to your long-term results than squeezing out a slightly higher average return.
Is a higher average return always better?
Not necessarily. A higher average return that comes with larger swings up and down can produce a worse actual result than a lower, steadier average return. It is worth looking at both the average and the volatility behind it, not the average number alone.
P.S. If you found this breakdown helpful and want more videos like this on the numbers behind your accounts, come join a community of over 150 members working through these exact concepts together, with free courses and resources included.
