The 2022 Rate Shock: A Case Study in Correlation Failure
The year equities and bonds fell together — and what it revealed about portfolio architecture.
The 2022 rate hike shock produced the worst year for the traditional 60/40 portfolio since the 1930s. US equities fell 19%, US investment grade bonds fell 13% — and they fell together, destroying the diversification logic that had justified holding bonds as equity hedges for an entire generation of investors. Understanding what happened in 2022 and why is essential for building portfolios resilient to the next regime transition.
The 40-year bond bull market and its assumptions
From 1981 to 2021, US interest rates broadly declined from approximately 16% to 0%. Over four decades, declining rates mechanically produced capital gains on bond holdings. This created an entire generation of portfolio managers who associated bonds with safety, income, and equity-uncorrelated returns.
The equity-bond correlation was reliably negative throughout this period — when equities fell in risk-off events, investors fled to government bonds, driving bond prices up. The 2000-2002 dot-com crash, the 2008 GFC, the 2011 European sovereign debt crisis all followed this pattern: equities down, bonds up, 60/40 portfolios cushioned. This created a structural dependence on a specific macro regime — low inflation with disinflationary pressure — that proved temporary.
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Not financial advice. Educational content only.