XIRR: The Only Metric That Shows Your Real Trading Performance
You think you're profitable because your portfolio shows +15%? Your P&L is lying to you.
Most traders confuse two things: gross gain in dollars and real time-weighted return. You may have invested $5,000 two years ago and $10,000 three months ago. A simple gain percentage doesn't reflect your actual performance at all.
What is XIRR exactly?
The XIRR (Extended Internal Rate of Return) is the extended internal rate of return. Unlike classic ROI, it takes into account:
- Exact dates of each deposit and withdrawal
- Variable amounts you invest over time
- Time value of money — $1,000 invested 2 years ago doesn't carry the same weight as $1,000 invested yesterday
The result? An annualized rate that tells you exactly how much your strategy earns per year, comparable to any benchmark (S&P 500, World ETF, etc.).
Why classic ROI is misleading
Let's take a concrete example:
- January 2024: You invest $1,000 in BTC
- December 2024: You add $9,000
- March 2025: Your portfolio is worth $11,000
Classic ROI: (11,000 - 10,000) / 10,000 = +10%. Looks right.
But your initial $1,000 worked for 14 months while your $9,000 only worked for 3 months. XIRR calculates your real annualized return at just +4.2% — well below a simple World ETF.
How to calculate your XIRR
In Excel or Google Sheets, the XIRR formula exists but it's complex to maintain: you need to manually list every cash flow with its date. Any mistake throws everything off.
That's exactly why Hercul Market automates the calculation. Connect your Google Sheet or import your Excel file, and your XIRR is calculated instantly. No formulas, no errors.
XIRR and DCA strategy
If you're doing DCA (Dollar Cost Averaging), XIRR is essential. With regular purchases at different dates and amounts, a simple ROI is meaningless. Only XIRR tells you if your DCA beats the market or if you're wasting your time.
With Hercul Market's DCA Dashboard, every purchase is tracked and your XIRR updates in real-time. You know exactly if your strategy is working.