Complete Portfolio Tracking Guide: How to Track Investments Across Multiple Brokers (2026)
You have an account on Scalable Capital for ETF savings plans, use Degiro for US stocks, keep bonds on Directa for tax optimization, and maybe have a hardware wallet for Crypto.
If this sounds familiar, you already know the problem: total chaos.
Accessing 4 different apps to understand your net worth is frustrating. Even worse is having no idea of your true risk exposure. How much does the S&P 500 really weigh in your total? Are you overexposed to tech without knowing it?
In this definitive Portfolio Tracking guide, we'll see exactly how to aggregate all your investments into one professional dashboard, the metrics that truly matter (beyond simple gains), and how to do it while keeping your data 100% private.
Table of Contents
1. Why "Mental Accounting" Costs You Money
Many investors fall into the trap of mentally compartmentalizing their money. "This is retirement money on Scalable", "This is trading money on Degiro".
Without an aggregated view (Portfolio Tracking), you risk:
- Asset Overlap: You might buy a World ETF on one broker and a Tech ETF on another, ending up with 40% of your portfolio in Apple and Microsoft unintentionally.
- Tax Inefficiency: Not seeing capital gains and losses in one screen makes it difficult to plan tax loss harvesting.
- Asset Allocation Drift: You wanted a 60/40 stocks/bonds allocation, but market movements brought you to 80/20. Without unified tracking, you don't notice and don't rebalance.
2. Tracking Methods: Excel vs Automated Apps vs Hybrid
In 2026, you essentially have three ways to monitor your portfolio.
| Method | Pros | Cons |
|---|---|---|
| A. Spreadsheet Excel / Google Sheets | Infinite customization, free, no data sharing. | You must enter data manually, formulas break ("#REF!"), retrieving real-time prices is complex (Google Finance often fails on European tickers or local exchanges). |
| B. Banking API Apps Open Banking | Fully automatic. | Privacy: you must provide login credentials or API tokens to third parties. Connections often drop, requiring continuous reconnections. |
| C. Data Import The DonkyCapital Approach | Maximum Privacy (you never share your broker password), automated calculations (the software does everything), penny-accurate data. | Requires 30 seconds per month to upload the updated file. |
The verdict: If you care about the security of your financial data but don't want to go crazy with Excel, the "Data Import" approach is the gold standard of 2026.
3. What to Track: The Complete Checklist
Good tracking doesn't just look at the "Current Price". For total control, your dashboard must include:
- Asset Class: Stocks, Bonds, ETFs, Crypto, Cash, P2P Lending.
- Geography: How exposed are you to the US? And Europe?
- Currency: Too many assets in USD? If the Euro strengthens, your portfolio drops. You need to know.
- Sectors: Technology, Healthcare, Energy. Sector diversification is your insurance against specific crises.
- Costs (TER & Fees): Often hidden, they erode compound returns.
4. Essential Metrics: TWR vs IRR (and why P&L lies)
If you only look at the absolute P&L (Profit & Loss) (e.g. "+€500"), you're not understanding how you invest. Here are the two king metrics you'll find on advanced platforms like DonkyCapital:
TWR (Time-Weighted Return)
Measures manager skill (yourself) by eliminating the effect of deposits/withdrawals. Essential for comparing your performance against a benchmark (e.g. S&P 500). If you deposit €10,000 and the market is flat, your value goes up, but your TWR stays at 0%. Correct.
MWR / IRR (Money-Weighted Return)
Takes into account the timing of your cash flows. If you're good at "buying the dip", your MWR will be higher than your TWR.
Use TWR to understand if your strategy works compared to the market. Use IRR to understand how much you're actually earning in your pocket.
5. 3 Common Mistakes to Avoid
- Ignoring Dividends: Many Excel sheets only track price. If you invest in Dividend Aristocrats, you could be underestimating your return by 3-4% annually.
- Forgetting Cash: Cash is a position! If 50% of your portfolio is liquid waiting to invest, your risk is low. If you don't track it, you think you're 100% invested.
- Wrong Benchmarking: Don't compare a 60/40 portfolio with the S&P 500 (100% stocks). You'll always feel like you're losing during bull markets, pushing you to take too much risk.
6. Recommended Tools: DonkyCapital
For a European investor using brokers like Scalable Capital, Degiro, Moneyfarm or Directa, the tool choice is critical.
Editor's Choice: DonkyCapital
DonkyCapital was born to solve the privacy problem and the complexity of Excel. It's a Progressive Web App (PWA), so it works on desktop and mobile like a native app, but without going through app stores.
Why we like it:
- Zero Credentials: You never have to give your broker password. It works by importing the files your broker already provides.
- Scalable Capital "Hack": Scalable requires the Prime+ plan to see detailed performance. DonkyCapital offers a free Chrome extension that extracts your data from Scalable (even Free plan) and analyzes it for free.
- Customizable Dashboards: Unlike other rigid tools, here you can move widgets, create pie charts or heatmaps as you please.
7. Step-by-Step Setup: Unify Your Portfolio in 5 Minutes
Here's how to set up professional tracking using DonkyCapital (taking advantage of the Free Early Access period).
Step 1: Create Your Account
Go to DonkyCapital.com and sign up. Currently the first 100 users get lifetime Premium features for free.
Step 2: Get Your Data from the Broker
- Degiro: Go to Portfolio -> Export (CSV).
- Scalable Capital: Use the DonkyCapital Chrome extension if you have the Free plan, or download the report from "Profile -> Taxes/Documents".
- Others (Directa/Moneyfarm/Trade Republic): Download the PDF or CSV of transactions.
Step 3: Import
In the DonkyCapital dashboard, click "Import Portfolio", select your broker and drag the file.
The system will automatically recognize tickers, dates, prices and fees.
Step 4: Analyze
Now you have access to the Sector Heatmap (to see if you're overexposed to Tech or Finance) and the Dividend chart. Configure the dashboard by dragging the widgets you care about most to the top.
8. FAQ - Frequently Asked Questions
Is it safe to upload my broker files?
Yes. CSV/PDF files only contain transaction history. They don't contain passwords, nor allow fund withdrawals. Data on DonkyCapital is encrypted and servers are in Europe (GDPR compliant).
Can I track Crypto?
Absolutely yes. You can merge in the same chart your stock portfolio on Degiro and your Bitcoin on Ledger/Binance to see your total wealth.
Does it work on Mobile?
Yes, DonkyCapital is a PWA. You can add it to your iPhone or Android home screen and use it like a native app.
Want to Stop Using Excel?
We're opening the Early Access Program. The first users will receive Premium features forever, for free.
SIGN UP FREE NOW (Early Access)Includes automated import for Scalable, Degiro, Directa and more.