Paul Merriman’s 4-Step Portfolio Strategy for Long-Term Wealth

Summary of Paul Merriman’s 4-Step Portfolio Strategy for Long-Term Wealth

by BiggerPockets

1h 22m•February 17, 2026
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Overview of Paul Merriman’s 4-Step Portfolio Strategy for Long-Term Wealth

This BiggerPocketsMoney episode features Paul Merriman — longtime investor, author and educator — explaining a simple, evidence-based buy-and-hold framework that’s designed to improve long-term returns and reduce emotional mistakes. Paul emphasizes multi‑asset equity diversification (especially value and small‑cap exposure), sensible bond use depending on life stage, disciplined rebalancing, and behavioral control. He also points listeners to practical tools (fund picks, withdrawal tables, and a bootcamp) to implement the approach.

Key takeaways

  • Diversify across equity asset classes (large/small × value/blend) — not just the S&P 500 — to smooth returns and lift long‑term performance.
  • Non‑traditional index strategies (DFA, Avantis, etc.) target factor exposures (value, size, quality) and can outperform many traditional indexes — but they often cost more.
  • Your asset allocation should follow a personal glide path (age, goals, withdrawals, other income) — there’s no single right split for everyone.
  • Bonds are for stabilization and/or income: use short‑to‑intermediate government bonds to stabilize; long bonds add volatility with rate risk.
  • Rebalance (annual or rule‑based e.g., 5% drift) and plan your withdrawal rate with historical scenarios (3–6%) to reduce sequence‑of‑returns risk.
  • Behavioral biases are a primary danger — training, rules and simple plans are vital to avoid selling low in crises.
  • Start early. Small differences in return or savings timing compound dramatically over a lifetime.

Paul Merriman’s distilled 4-step portfolio strategy

Step 1 — Own broad, multi-factor equity exposure

  • Core recommendation: combine four U.S. equity asset classes — large blend (S&P/large cap), large value, small blend, small value.
  • A simple implementation: 25% each in the four buckets. This historically produced lower volatility and modestly higher returns versus S&P alone.
  • If you want fewer funds, a two‑fund mix (S&P 500 + small‑cap value) can approximate many benefits (various weightings like 60/40, 70/30, 80/20 are possible).

Step 2 — Prefer evidence-based, quality-focused funds for value/size exposure

  • “Non‑traditional” index funds (DFA, Avantis, others) use factor rules (value, size, quality, momentum, liquidity) and higher‑quality screens vs plain cap‑weighted small cap indexes.
  • Expect higher fees than an S&P ETF (e.g., 0.2–0.3% vs ~0.03–0.05%), but these funds may capture factor premia that historically add returns.
  • Avantis (AVUV) and DFA are examples Paul highlights for small‑cap value exposure.

Step 3 — Build a personal glide path (accumulation → decumulation)

  • Young investors: favor higher equity share (often all equity in early accumulation) to maximize growth and the compounding advantage.
  • Near/at retirement: gradually increase bond allocation to stabilize the portfolio and protect withdrawals (target‑date funds are an easy glide‑path example).
  • Paul’s personal stance: tailor glide paths to individual goals (family obligations, charity targets, spending needs). There’s no single universal allocation.

Step 4 — Rebalance, control costs & manage behavior

  • Rebalance periodically (e.g., annually) or using drift thresholds (e.g., 5%) to “sell high / buy low.”
  • Control fees, taxes, and avoid chasing hot asset classes or narratives from Wall Street sales tactics.
  • Learn common behavioral biases (recency, overconfidence, etc.) and build rules to prevent emotionally driven mistakes.

Asset-class specifics & historic impacts

  • Combining U.S. large/small and value/blend historically added about ~1.5% annual return versus S&P alone (dataset goes back to 1928 for U.S. classes).
  • Adding international (large and small, value and blend) historically added another ~0.5% annual — meaningful over decades.
  • Small‑cap value is powerful long term but comes in long streaks of underperformance; it requires patience.
  • Rebalancing between S&P and small‑value smooths volatility and lowers worst‑case drawdowns compared with S&P alone.

Bonds, liquidity and withdrawals (decumulation guidance)

  • Purpose matters:
    • Stabilization for portfolio safety → short/intermediate government bonds (limit duration exposure).
    • Income → broader bond funds, but expect more volatility and lower inflation protection depending on the bond type.
  • Withdrawal planning:
    • Paul’s materials include historical tables for different equity mixes and withdrawal rates (3–6%) to test sustainability under past market sequences.
    • 3–4% withdrawals historically more robust, 5%+ increases risk of running out of money depending on portfolio and retirement age.
  • If you’re not withdrawing, you can stay more heavily equity‑weighted longer (Paul and many advisors emphasize liquidity preferences and individual circumstances).

Rebalancing & valuation rules

  • Rebalance to maintain your chosen allocation (annual rebalancing or when an asset class drifts beyond a set threshold).
  • Don’t try to time markets based on recent performance or “shiny” asset returns. Rebalancing enforces contrarian discipline (take from winners, give to losers).
  • Valuation extremes may prompt personal tweaks (e.g., adjusting rebalancing thresholds), but Paul emphasizes rules over market timing.

Behavioral & practical advice

  • Behavioral risk is as important as market risk; Paul highlights reading and recognizing biases (16‑page appendix listing 48 cognitive biases in his book).
  • Control what you can: savings rate, fees, tax efficiency, automatic investing, and choice of funds.
  • Start as early as possible — even small contributions early (e.g., Roth IRAs for children) compound into large advantages.
  • If uncertain, an hourly fiduciary advisor can be worth the fee to tailor a plan and glide path.

Actionable checklist (what to do next)

  • Decide your investment horizon and whether you’re accumulating or decumulating.
  • Choose an equity core: either S&P 500 + small‑cap value (two funds) or the 4‑fund split (25% each).
  • Consider factor/quality‑focused ETFs (DFA/Avantis) for small‑cap value exposure if you accept slightly higher fees.
  • Set a glide path for bond allocation based on age, income needs and risk tolerance.
  • Implement an annual rebalance or a rule‑based rebalance (e.g., 5% drift).
  • Set a withdrawal rule and run conservative scenarios (3–4% vs 5%+).
  • Read about behavioral biases and put rules in place to avoid panic selling.

Notable quotes / soundbites

  • “Prepare for the worst, hope for the best.” — on emotional and sequence risk.
  • “The sooner you start, the better.” — on compounding and Roth opportunities for young savers.
  • “Take from the rich and give to the poor” — succinct description of rebalancing discipline.

Where to learn more / resources Paul mentioned

  • paulmerriman.com — Paul’s site with bootcamps, articles and the downloadable tables/bootcamp materials.
  • Book: We’re Talking Millions (Paul’s book) — includes a 16‑page appendix of common cognitive biases.
  • Recommended reading: Your Money and Your Brain by Jason Zweig.
  • Look into DFA and Avantis ETFs for non‑traditional index implementations (e.g., AVUV for small‑cap value) — be aware of higher fees vs plain S&P funds.

Final note: Paul’s framework is simple to understand but requires discipline: wide factor diversification, a personal glide path, rebalancing rules, and behavioral controls. Those four components — implemented consistently — are the backbone of his long‑term wealth approach.