Inflation Redux?

AQR argues that investors should prepare portfolios for renewed inflation shocks because traditional stock-bond diversification can fail when inflation news dominates growth news.

• Inflation fell from its 2022 peak, but remained above central-bank targets in the U.S. and U.K.; Japan experienced its first significant inflation episode in more than 30 years, while public debt, trade volatility and geopolitical events added uncertainty in 2026.
• The study measures inflation and growth news over 1972-2026 using quarterly, overlapping 12-month changes and surprises relative to survey forecasts, and tests the sensitivities of asset classes, equity sectors and strategies.
• Broad equities and most sectors sit in the “Goldilocks” quadrant, benefiting from stronger growth and lower inflation, leaving typical portfolios exposed to rising inflation and vulnerable to higher stock-bond correlations.
• Inflation-linked bonds, energy equities, commodities and price- or economic-trend-following strategies offer different sensitivities that can move portfolios toward greater resilience; commodities, trend following and long/short value performed best during the 2022 bear market.
• Gold, TIPS and breakevens disappointed in 2022 because real yields rose while long-term inflation expectations stayed anchored, although breakevens had performed well in 2021.

Takeaway: Investors should diversify inflation risk with commodities and trend following rather than relying only on nominal bonds, while recognizing that these strategies may incur a performance cost if another inflation shock does not occur.