7 Portfolio Rules From Bill Bernstein Every Investor Should Know

Bill Bernstein lays out simple, evidence-based rules for building resilient portfolios and staying invested through crises. Topics include savings targets, total-market allocation, modest tilts, rebalancing, cash/TIPS, and behavioral discipline. Why 15% may be adequate for lower/middle incomes and why high earners should target ~20% (total contributions can approach ~30%). Design portfolios to survive the worst 2% of outcomes so you’re unlikely to interrupt compounding in a crisis. Start with broad-market exposure (total stock market); limit small-cap tilts to roughly 25–33% of the equity sleeve. Rebalance on a multi-year cadence (about every 2–4 years) or by thresholds; avoid frequent taxable rebalancing to reduce tax drag. Use short-term cash for liquidity, consider TIPS ladders for retirees, and reduce concentration risk by taking gains on outsized winners. ------------------------------------------------------------------------ This video is brought to you by The Motley Fool. Visit https://fool.com/Invest to get access to this special offer. The Motley Fool Stock Advisor returns are 968% as of 1/12/2026 and measured against the S&P 500 returns of 197% as of 1/12/2026. Past performance is not an indicator of future results. All investing involves a risk of loss. Individual investment results may vary, not all Motley Fool Stock Advisor picks have performed as well. ------------------------------------------------------------------------