What 'I'm up 3%' really means

Someone at a dinner party tells you they’re up 3% this year. Sounds straightforward. Their investments grew by 3%. Good for them.

But what does that actually mean?

Did their portfolio go from $100,000 to $103,000? Or did they put in $50,000 at the start of the year and another $50,000 last month, and now they have $103,000, meaning the actual investment return is way less than 3%? Did fees already get subtracted? Were dividends included? Is “this year” January to now, or the last 12 months?

“I’m up 3%” sounds like a fact. It’s closer to a rough impression.

One number hiding many numbers

A portfolio return is an average. And like most averages, it hides what’s happening underneath.

Say you own five stocks. One is up 40%. Two are flat. Two are down 15%. Your overall portfolio might show “up 3%.” That single number makes it sound like everything gently rose by a small amount. In reality, your portfolio is a mess of wildly different outcomes, and the one big winner is carrying the whole thing.

This matters because it changes what you should think about next. If everything really did go up 3%, your portfolio is performing evenly. If one stock is dragging you into positive territory while others are sinking, you might want to know that. The headline number doesn’t tell you. You have to look underneath.

This is closely related to actually knowing what you own. If you don’t know what’s in your portfolio, a return number is just a vibe.

The contributions problem

This is the one that confuses almost everyone. And honestly, it confused me too for a long time.

If you started the year with $10,000 and now have $15,000, you might think you’re up 50%. But if you added $4,500 throughout the year, your actual investment return is closer to 5%. The rest is just money you deposited.

Your brokerage might show you a “total return” that accounts for contributions, or it might not. Some platforms show simple gains (current value minus total deposits), which can make your return look better or worse than it actually is. Some show time-weighted returns, which strip out the effect of when you added money. Some show money-weighted returns, which factor the timing in.

These are all different numbers, and they can all be “correct” while telling you very different things. I went deep on this in a separate piece about why returns are so confusing. The short version: the number your app shows you might not mean what you think. It’s one of the core problems Greenline solves: a return number that actually accounts for your contributions, your fees, and your dividends.

Fees: the invisible subtraction

When someone says “I’m up 3%,” fees have usually already been deducted. If you’re in a mutual fund with a 2% MER, and the fund’s underlying investments returned 5%, the fund reports 3%. You see the 3% and feel fine about it.

But a low-cost index fund tracking the same market would have returned close to 5%. The gap is the fee, quietly subtracted before the number ever reached your screen. So “up 3%” after a 2% fee is very different from “up 3%” after a 0.2% fee. One means the market did about 5%. The other means the market did about 3.2%.

Same headline. Completely different underlying reality. And you’d never know unless you looked at the fee structure and compared your return to a benchmark.

Dividends: counted or not?

Some stocks and funds pay dividends. Whether those dividends are included in your return number depends on how your brokerage calculates it and whether you reinvest them.

If a fund returned 3% in price growth and paid a 2% dividend, the total return is actually 5%. But some brokerage screens only show price return. You see 3% and don’t realize there’s another 2% that came as cash sitting in your account or that got reinvested and is quietly growing.

On the flip side, if someone tells you their stock is “up 15%” and it pays no dividend, while your stock is “up 10%” but pays a 4% dividend, you’re actually ahead on total return. But the conversation never gets that far because everyone compares the headline price number.

The timing illusion

When you started investing matters, and people almost never account for it.

Say two people both own the same ETF. Person A invested $50,000 in January, right before a 10% dip, and held on as the market recovered. Person B invested $50,000 in March, after the dip, and caught the recovery. By December, they own the same ETF. But Person A might be up 2% while Person B is up 12%.

Same investment. Same time period. Wildly different personal returns. If they compare notes at a party, one feels like a genius and the other feels like they made a mistake. Neither did anything wrong. Timing of a single contribution changed the whole number.

This is why comparing your return to someone else’s is almost meaningless unless you know exactly when they bought, how much, and at what price. Even then, your return is a product of your specific cash flow pattern. It’s personal in a way that makes comparison basically useless.

What “up 3%” actually tells you

Almost nothing, on its own.

It doesn’t tell you how the market did over the same period. It doesn’t tell you if 3% is good or bad. It doesn’t tell you what you’re paying in fees, whether dividends are included, or how your contributions affected the number. It doesn’t tell you if one holding is masking another’s loss. It doesn’t tell you anything about risk.

“My mutual fund is up 11% this year” sounds great until you find out a basic index fund did 16% over the same period. That person didn’t earn 11%. They left 5% on the table, mostly to fees, and they’ll never know because 11% sounds good in isolation.

Returns only mean something in context. Compared to a benchmark. Adjusted for fees. Clarified for contributions. Broken down by holding. That’s the full picture. Everything else is a headline, and headlines are designed to make you stop reading.

The point

I’m not saying return numbers are worthless. They’re a starting point. But treat them that way. When you see “up 3%” on your screen or hear it at a dinner party, the right response isn’t satisfaction or envy. It’s curiosity.

Up 3% compared to what? After what fees? Including what? Over what time period?

Those follow-up questions are where the real information lives.