Ben Carlson: The Most Dangerous Investing Myth We All Love

Summary

Ben Carlson explains why long-term stock investing works even with terrible timing, using examples like 'Bob the world's worst market timer.' He highlights how volatility declines with holding periods, why global diversification protects against disasters like Japan, and why the 1970s were uniquely punishing. The discussion covers behavioral pitfalls, the appeal of rules-based investing, and the dangers of day trading and chasing hot strategies.

• Bob the world's worst market timer, buying only at peaks before major crashes, still became a millionaire by holding stocks.
• The average up year for the S&P 500 is around 21%, and there have been more 20%+ up years than down years historically.
• Stock market volatility declines with holding period; over 10-20 years, stocks become as stable as bonds.
• Even with Japan's massive bubble and subsequent 35-year recovery, a globally diversified index investor (ACWI) earned around 8% annualized.
• The 1970s were the only decade where stocks, bonds, and cash all underperformed inflation; T-bills and housing were the best performers.
• Investors often chase hot strategies; setting rules and avoiding discretionary products helps avoid behavioral mistakes.
• Day trading and hyperactive trading have terrible success rates, with the top 0.1% capturing most profits.
• Tax management via direct indexing and other tools is becoming a new source of alpha, but a bear market remains the simplest way to reset capital gains.