The Last Bubble? Finding Value in a World on Fire | Jeremy Grantham & Edward Chancellor

What It Covers

Jeremy Grantham and Edward Chancellor discuss Grantham's six-decade career as a value investor, chronicled in his autobiography. They examine mean reversion principles, current US equity overvaluation at historic highs, the relationship between ultra-low interest rates and asset bubbles, and strategies for finding value in international and emerging markets while avoiding overpriced US stocks.

Key Questions Answered

• •Mean Reversion Discovery: Grantham calculated by hand from 1926-1970 data that return on equity regresses 15% toward the mean annually. A company earning 4% versus the 12% average would see 15% of that 8-point gap close in one year, making low-return companies better investments than their earnings suggest and high-return companies worse despite retention advantages.
• •Current Market Valuation: US equities represent the highest-priced market in history using metrics with the best 100-year predictive record since 1925. The valuation gap between US and international markets reached its widest point ever a year ago. GMO's International Value Fund returned 45% in 2023 versus lower US returns, with emerging markets up 35% and nearly 10% in January 2024 alone.
• •Interest Rate Asymmetry: The Greenspan-Bernanke-Yellen era created asymmetric Fed policy guaranteeing speculation increases. They bailed out downturns but ignored upswings. This tripled US debt-to-GDP ratio over 40 years while GDP growth declined from 3.5% annually to 1.75% and falling, proving increased debt reduces rather than enhances economic growth contrary to low-rate policy assumptions.
• •Monopoly Factor Impact: Quality stocks defined as high stable returns with no debt essentially measure monopoly power through price-fixing ability. These AAA-rated equities outperformed by 0.5% annually over 100 years instead of underperforming by 1% as capitalist logic predicts. Post-2000 concentration increased across all industries, breaking mean reversion patterns as monopolies resist competitive forces that historically drove regression.
• •Portfolio Positioning Strategy: Avoid holding cash or overpriced US equities by diversifying into non-US markets trading at reasonable valuations. Allocate half of cash reserves to emerging market local currency debt, which returned 22% in 2023 and averaged 12% annually over 32 years. This approach protects against financial repression and currency debasement while maintaining equity exposure outside bubble-priced US markets.