7 ETF Investing Mistakes That Expose You as a Beginner (Even If You've Invested for Years)

Most ETF investors are making at least three of these seven mistakes right now — and they don't know it because every single one feels like the safe, smart, responsible choice. I know because I made mistake number four myself. It cost me years of compounding. I told the full story on Tuesday. Today I'm giving you all seven — what each one is, why it feels correct when you're doing it, and exactly what it's costing you. 📊 The 7 mistakes: ✔ Mistake 1 — Owning too many ETFs that do the same thing (VOO + VTI correlation: 0.99) ✔ Mistake 2 — Confusing yield with return (QQQI yields 14% but underperformed QQQM on total return) ✔ Mistake 3 — Ignoring expense ratios because they seem small (0.53% gap = ~$145K on $100K over 30 yrs) ✔ Mistake 4 — Selling during a crash ← the one I made (2008 · missed October 28 +10.8% · cost me years) ✔ Mistake 5 — Waiting for the right time to invest (CAPE has been "elevated" for 30 years · time in beats timing) ✔ Mistake 6 — Using income ETFs during accumulation (QQQI in accumulation = right product, wrong phase) ✔ Mistake 7 — Checking your portfolio every day (more checking = more opportunity to act on noise) ✔ Bonus — Not starting at all (the most expensive invisible mistake) 💰 Key data behind each mistake: Mistake 1: • VOO vs VTI correlation: 0.99 — they move virtually identically every day • Two expense ratios for essentially the same portfolio = guaranteed double cost Mistake 2: • QQQI 1-year total return: 21.25% vs QQQM 24.66% — with distributions included in both • YTD 2026: QQQM +13.60% vs QQQI +8.12% • Yield extraction ≠ wealth building in accumulation Mistake 3: • QQQI: 0.68% vs QQQM: 0.15% → 0.53% annual gap • On $100K over 30 years at identical pre-fee returns: ~$145,000 difference in final value • QQQ: 0.18% vs QQQM: 0.15% → same 100 companies, 0.03% cheaper, compounding advantage Mistake 4 (the personal one): • 2008: I sold at the bottom — missed October 28, 2008 (+10.8% in one day) • Missed March 23, 2009 (+7.1%) — ear

Added 25 Jul 2026