ETF Investing. Finally Explained Clearly.
Plain-English guides, real fee data, and zero financial agenda.
One clear ETF concept, every week.
Expense ratios, rebalancing, fund comparisons, and more. Written and reviewed by a CFA Charterholder. Free.
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What you'll actually understand after using ETF BFF
We're not a brokerage or robo-advisor. We don't manage your money or execute trades. We make you sharper so you can do it yourself.
Know what you actually own
VTI and VOO look similar on the surface. One holds 3,600 stocks; the other holds 500. That difference matters. We explain what's inside the funds you're considering before you buy them.
Fees that look tiny aren't
A 1% expense ratio on a $50,000 portfolio quietly costs you around $30,000 over 20 years compared to a 0.03% fund. You'll never see a single line-item charge. Our fee calculator makes it visible.
Compare funds before you commit
QQQ vs. VGT. IVV vs. SPY. These are genuinely different bets, even when they track similar indexes. We break down what separates them so you can make the call yourself.
A strategy beats a portfolio of guesses
Three funds, properly allocated, have outperformed most active portfolios over the long run. We cover the three-fund approach, asset allocation, rebalancing, and tax efficiency. Plain English, not textbook language.
Free tools that show you the numbers, not just the theory
Every tool is free, no sign-up required. Built to answer the questions your brokerage app doesn't.
Fee Calculator
A 1% expense ratio on $50,000 costs ~$30,000 more than a 0.03% fund over 20 years. See exactly what your ETFs are really costing you.
Calculate Your ETF Fees →ETF Comparison Tool
SPY vs. IVV vs. VOO: same index, different costs and structures. This tool shows you the differences that actually matter, side-by-side.
Compare ETFs Side-by-Side →ETF Archetype Quiz
Start here if you're new. 5 questions that match you to an investing style: growth, income, stability, or all-market, then recommend specific ETFs for that approach.
Find your ETF type →ETF Screener
Filter 400+ ETFs by expense ratio, category, and strategy. Good for when you know roughly what you want but haven't settled on a specific fund.
Search ETFs →Portfolio Analyzer
Check your ETF portfolio for overlap, hidden fees, and concentration risk. See exactly what you own across funds.
Analyze your portfolio →Investor Profiler
Already know your style? Input your time horizon, risk tolerance, and goals to get a specific allocation breakdown: how much in stocks, bonds, and international.
Build your allocation →From the ETF BFF Blog
Short reads on the questions new investors actually have.
SGOV vs Money Market Funds: Which Holds Your Cash Cheaper?
Both park your cash in safe, short-term government paper. The real differences are fee, taxes, and how fast you can move the money. A high state tax rate can settle it.
Read post →SGOV vs VMFXX: ETF or Money Market Fund for Your Cash?
VMFXX is the default cash fund at Vanguard. SGOV is a Treasury ETF you can hold anywhere. The fee gap is two basis points. The tax difference is bigger, and it usually decides it.
Read post →Space ETF Searches Are Up 250%. SpaceX Is Why.
Investors searching for SpaceX exposure are landing on NASA, ROKT, and ARKX. None of them hold SpaceX. Here is what they actually own and which one is closest to the thesis.
Read post →Free ETF Guides, Clear and Jargon-Free
In-depth ETF investing guides written for real people: clear, opinionated, and jargon-free.
ETF Basics: Your Complete Guide
What are ETFs? How do they work? Start here if you're brand new to exchange-traded funds.
Start with ETF Basics →Build a 3-Fund Portfolio
The simple, proven strategy for long-term wealth using just three ETFs, and why it outperforms most active approaches.
Read the 3-Fund Strategy →Understanding Expense Ratios
A 1% fee sounds small. Over 30 years it can quietly consume a quarter of your wealth. Here's the math.
See the Fee Math →ETF Investing FAQs: Beginner Questions, Answered Plainly
The questions every beginner asks about ETF investing, answered in plain English.
One email a week. Actually worth opening.
Each week we cover one ETF concept in plain English. No jargon, no stock picks, nothing to buy. Content is developed and reviewed by a CFA® charterholder, so it's accurate, not just readable.
- 📖 One ETF concept explained clearly: expense ratios, rebalancing, tax-loss harvesting, and more
- 💡 Practical takeaways you can act on the same day
- 🚀 First to know when new guides, tools, and brokerage data go live
- 🔕 No stock tips, no sponsored content, no selling
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