ROI vs TWR vs MWR vs XIRR: How to Measure Your Real Investment Return

Have you ever looked at your portfolio and thought, "My holdings look green, so why does my overall return still feel disappointing?"

That confusion usually starts because investors use one word, return, for multiple different questions:

• Did my money go up or down overall?
• Did the asset itself perform well?
• Did my timing help me or hurt me?
• How does my portfolio compare with yearly benchmarks like inflation, bank deposits, or the KSE-100?

The truth is that "return %" is not a single number. The right metric depends on what you are trying to judge.

In this guide, we will start with the familiar ROI / gain-loss % and then compare it with TWR, MWR, and XIRR using one shared example all the way through.

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Start with ROI: the number most investors already know

ROI (Return on Investment) is the simplest return measure:

ROI = (Current Value - Net Invested Amount) / Net Invested Amount

If you invest once and never add or withdraw money, ROI is perfectly fine. It gives you a direct answer to the question, "Am I up or down?"

But ROI starts to mislead you the moment your portfolio has multiple cash flows. If you add a large amount just before a market fall, or invest more right before a rally, simple gain-loss % cannot tell you whether the issue was:

• the asset or strategy, or
• your timing and cash deployment

That is exactly why TWR, MWR, and XIRR exist.

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One shared example: same portfolio, four different answers

Let us use one scenario throughout the article:

Date	What happened	Amount / Value
1 Jan 2026	You invest in Stock A	Rs. 100,000
1 Apr 2026	Portfolio grows by 10%	Rs. 110,000
1 Apr 2026	You add more money after feeling confident	Rs. 900,000
1 Apr 2026	New total right after deposit	Rs. 1,010,000
1 Jul 2026	Market falls by 5% from there	Rs. 959,500

You invested a total of Rs. 1,000,000, but your ending value is only Rs. 959,500.

At first glance, it looks like a simple loss. But each return metric reads this same journey differently.

1. ROI: "Did my total money go up or down?"

Simple ROI says:

ROI = (959,500 - 1,000,000) / 1,000,000 = -4.05%

So your overall money outcome is -4.05%.

That is useful, but it still does not tell you whether:

• Stock A was a bad holding, or
• your large second deposit came at a bad time

ROI tells you the outcome. It does not isolate the reason.

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2. TWR: "How did the asset or strategy perform?"

TWR (Time-Weighted Return) measures the performance of the underlying asset or strategy while ignoring the effect of when you added or withdrew money.

If you want to answer questions like:

• "Was my stock selection good?"
• "Did this mutual fund manager do a good job?"
• "Did my allocation work?"

then TWR is the cleanest metric.

Real-world use: The NAV-based returns published on every mutual fund factsheet are calculated using TWR. Each day's NAV movement is one sub-period return, and those sub-period returns are chained together to produce the 1-year, 3-year, and 5-year figures you see — making fund performance comparable regardless of when different investors entered. You can explore and compare those NAV-based returns across Pakistani mutual funds on our mutual funds screener.

TWR calculation in this example

TWR breaks the journey into sub-periods around cash flows and links the returns together:

• Period 1: +10%
• Period 2: -5%

TWR = (1.10 × 0.95) - 1 = +4.50%

So even though your portfolio value ended below the money you invested, TWR is still positive at +4.50%.

That means the asset itself did fine overall. The problem came from when you committed most of your money.

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3. MWR: "How did I personally do, given my timing?"

MWR (Money-Weighted Return) measures your personal investment experience by giving more weight to the periods where you had more money at work.

This is the right question when you want to know:

• "How did my actual capital perform?"
• "Did my deposits and withdrawals help or hurt me?"
• "What return did I experience, not just the asset?"

In our example, the largest part of your capital, Rs. 900,000, went in right before the decline. That late top-up gets a lot of weight in MWR.

MWR result in this example

MWR is calculated by first solving for the annualized rate (XIRR) and then de-annualizing it to the actual holding period:

MWR = (1 + XIRR)^(holding days / 365) - 1
    = (1 + (-0.1403))^(181 / 365) - 1
    ≈ -7.22%

The holding period here is 181 days (1 Jan to 1 Jul 2026).

That is more negative than simple ROI because MWR reflects when the money was exposed, not just the final profit or loss.

Key insight: TWR says the asset earned +4.50%, but MWR says your capital experience was roughly -7.22% because you scaled up right before the weak period.

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4. XIRR: "What is that personal return on an annualized basis?"

XIRR (Extended Internal Rate of Return) takes those same irregular cash flows and solves for the annualized money-weighted return using the actual dates of each investment, withdrawal, dividend, and ending value.

This matters because investors often compare performance against yearly benchmarks such as:

• bank fixed deposits
• inflation
• mutual fund category averages
• KSE-100 or other index returns

XIRR result in this example

XIRR solves for the annual rate r that makes the net present value of all dated cash flows equal to zero:

XNPV(r) = 0

  -100,000 / (1 + r)^(0 / 365)          ← Jan 1 deposit
+ (-900,000) / (1 + r)^(90 / 365)       ← Apr 1 top-up (90 days later)
+   959,500 / (1 + r)^(181 / 365)       ← Jul 1 ending value (181 days later)
= 0

Solving numerically (Newton-Raphson, the same method used by Excel's XIRR): r ≈ -14.03%

That does not mean you lost 14.03% in six months. It means your dated cash flows imply a yearly return rate of -14.03% if expressed on an annual basis.

This is why XIRR is the better number when you want an apples-to-apples comparison with tools like our XIRR Calculator, yearly bank deposit rates, or Pakistan inflation trends.

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Same facts, different answers

Here is what the four metrics say for the exact same scenario:

Metric	Result	What it is really telling you
ROI	-4.05%	Your overall money outcome was negative.
TWR	+4.50%	The asset/strategy itself performed well overall.
MWR	-7.22%	Your personal timing hurt your realized return.
XIRR	-14.03% annualized	Your dated cash flows translate into a negative yearly rate.

That is the core lesson: these metrics differ because they answer fundamentally different questions.

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Why these return numbers differ so much

ROI measures outcome

ROI only compares money in versus current value. It is simple, fast, and familiar, but it ignores the path your portfolio took.

TWR measures asset performance

TWR strips out the effect of your deposits and withdrawals. It is best for evaluating the quality of the investment or strategy itself.

MWR measures investor experience

MWR gives more weight to the periods when more of your money was invested. That makes it the best metric for judging the impact of your own behavior and timing.

XIRR measures annualized personal return

XIRR uses the exact dates of your cash flows to convert your money-weighted experience into a yearly rate. That is why it is the cleanest benchmark number.

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Quick comparison: when the relationship changes

Case A: One lump sum, no later cash flows

If you invested once and never added more money, ROI, TWR, and MWR would usually be very close, because there is no timing distortion from later deposits or withdrawals. XIRR would just annualize that experience.

Case B: Top-up before a fall

This is our main example. The asset still posts positive TWR, but your MWR and XIRR worsen because most of your money arrived right before the decline.

Case C: Top-up before a rally

Now flip the sequence. Suppose the asset falls first, you add most of your money near the low, and then it rallies. In that case, MWR can exceed TWR because your timing added value beyond the asset's baseline performance.

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Which return metric should you track?

Use ROI when:

• you want a quick gain-loss snapshot
• there was only one major investment and no later cash flows

Use TWR when:

• you want to judge your stock picks, fund selection, or allocation quality
• you want to compare pure strategy performance

Use MWR when:

• you want to judge whether your deposits and withdrawals helped or hurt
• you care about the return your own capital actually experienced

Use XIRR when:

• you need an annualized number for irregular cash flows
• you want to compare against yearly alternatives like inflation or FDs
• you want a more realistic benchmark for your full portfolio

On FinHisaab, the most useful habit is to view these numbers together on your portfolio dashboard. If you also want to analyze custom scenarios, our XIRR calculator can help you test different cash-flow patterns.

Conclusion

If your gain-loss % looks strange, do not stop at ROI.

• Use ROI to see the total outcome.
• Use TWR to judge the asset or strategy.
• Use MWR to judge your own timing.
• Use XIRR to compare your portfolio against annual benchmarks.

That combination gives you a much more honest picture of what is really happening inside your investments.

Ready to see your real returns in one place? Check your Portfolio Dashboard now.

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Happy Investing!