
Sound Investing 4 Portfolio Levels for Wealth Building
Aug 13, 2025
Paul Merriman, founder of the Merriman Financial Education Foundation, shares his investment wisdom with Erin Moriarity. He emphasizes the power of starting early with small contributions and diversifying portfolios, particularly for young investors. Merriman also outlines various portfolio complexity levels and explains the importance of broad market diversification to mitigate risks. Moreover, he discusses the impact of fees on returns and highlights modern investing tools like index funds and automatic enrollment, making investing accessible for all.
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Compounding From The Crib
- Erin Moriarity described buying a 'compounding from the crib' onesie and directing family gifts into her son's investment account.
- She uses a Total Stock Market fund and keeps his account simple and equity‑heavy.
Plan With Conservative Return Estimates
- Use realistic historical ranges when planning returns; build plans on conservative long-term figures.
- Merriman recommends using lower-bound historical returns (e.g., ~8.9% for S&P 500) as conservative guardrails.
Use Target Date Funds If You Want Simplicity
- If you won't educate yourself, pick a single simple vehicle like a target date fund and stay invested.
- Vanguard target date funds historically help people outperform peers who pick their own allocations.












