The honest portfolio blog

Broker export guides, benchmarking done right, and the portfolio math your broker app skips. No hot takes, no stock tips.


20 articles Broker guides · benchmarking · dividends · portfolio math New guides monthly


Broker guides

DeGiro Export Guide: How to Download Your Full Transaction History

Step-by-step guide to exporting your DeGiro transactions and account statement, and what each file contains. Takes two minutes.

Interactive Brokers exports explained: Activity Statement vs Flex Query

IBKR has two export systems. Here's which one to use for portfolio tracking, and how to set up a Flex Query once so it works forever.

Trading 212 export guide: getting your full history out

How to export your Trading 212 transaction history as CSV, what the columns mean, and the fractional-shares detail to watch.

Robinhood export guide: your account activity as a file

How to download your Robinhood account activity report, decode the Trans Code column, and use it in a portfolio tracker.

eToro account statement: exporting and reading your history

How to download your eToro account statement, what Open/Closed positions mean for your history, and how to track it properly.

Benchmarking

Is your portfolio beating the S&P 500? Here's how to actually check

Comparing your return to the S&P 500 is harder than it looks. Deposits distort everything. Here's the right way to benchmark.

Time-Weighted vs Money-Weighted Return: Which Is Your Real Return?

Your broker shows one return number. There are actually two, they answer different questions, and mixing them up flatters bad decisions.

The Real Cost of Never Benchmarking Your Portfolio

Nobody audits a private portfolio. Benchmarking is how you find out if your effort is earning anything, or costing you.

S&P 500 or QQQ: which benchmark is honest for your portfolio?

Benchmarking against the wrong index flatters you. How to pick between the S&P 500 and QQQ based on what you actually hold.

Why most private investors underperform (and the boring fix)

The behavior gap is 1-2% a year, measured over decades. Where it comes from and the unglamorous way to close it.

Dividends

Dividend tracking: spreadsheet or tool?

A dividend spreadsheet works until it doesn't. Where the manual approach breaks, and when a tracker earns its subscription.

Ex-Dividend Date Explained: The Only Dividend Date That Matters

Buy before the ex-date, get the dividend. Everything else about dividend timing is detail, here's the short version.

Portfolio math

Average cost basis: the math behind your profit number

Buy the same stock three times and your 'profit' depends on accounting method. How average cost works and why brokers disagree.

Investing €500 a Month: What It Actually Becomes in 20 Years

The real numbers behind monthly investing at realistic returns, including the versions of the math that calculators skip.

Realized vs unrealized gains: why 'up 20%' can mean four things

Paper profit, banked profit, and the two ways they mislead you. A short field guide to reading your own results.

Privacy

Why we'll never ask for your broker login

Many portfolio trackers connect straight to your broker account. Convenient, and a bigger trade-off than the onboarding screen suggests.

Taxes

Dutch box 3 taxes: the January 1st number your tax return wants

For Dutch investors, one portfolio value matters at tax time: January 1st. Where to find it per broker, and how to stop reconstructing it.

Multi-currency

Multi-currency portfolios: the FX layer under your returns

Own US stocks as a European and part of your return is currency luck. Why tracking in one base currency changes your numbers.

Strategy

How many ETFs do you actually need?

The uncomfortable answer is one to three. What each extra ETF adds, what it duplicates, and how to check your overlap.

Multi-broker

Tracking multiple brokers in one place (without a master spreadsheet)

Two or three brokers is normal now. Seeing your actual total portfolio isn't. How to merge broker exports into one honest view.