J.P. Morgan data shows 60/40 portfolio recovers from crashes in 11 months

J.P. Morgan analysts report that a 60/40 stock and bond portfolio has recovered from drawdowns of 20 percent or more in an average of 11 months since 1988. This recovery period is half the 24-month average required for the S&P 500 to regain its value, even with dividends reinvested.

The strategy relies on periodic rebalancing to maintain the asset allocation. When equities fall, the portfolio's stock ratio drops below the target level, requiring investors to sell bonds and buy stocks to restore the balance. This mechanical process forces the purchase of equities at lower prices, a tactic that contributes to faster recovery times compared to an all-stock portfolio.

While the 60/40 structure offers distinct advantages during severe market declines, the benefit is less pronounced in smaller drawdowns. The portfolio only demonstrates a significant recovery speed advantage when the market drops at least 20 percent. For minor pullbacks, the difference in recovery time between the mixed portfolio and a pure equity position is negligible.

Long-term stability is another factor highlighted by the data. Since 1989, the 60/40 portfolio has generated a positive return in 99 percent of all five-year periods and 100 percent of all 10-year periods. In contrast, the S&P 500 alone has achieved positive returns in 87 percent of five-year windows and 93 percent of 10-year windows.

Concerns regarding bond diversification emerged in 2022 when both asset classes declined sharply. However, historical data indicates this was an anomaly rather than a structural shift. Bonds posted positive returns in 21 of the last 25 years in which the S&P 500 declined, suggesting they continue to serve as a stabilizing force during equity downturns.

Current market conditions may offer an entry point for increasing bond exposure. The Vanguard Total Bond Market ETF (BND), which tracks the Bloomberg U.S. Aggregate Bond index, currently offers a yield to maturity of 5.5 percent as bond prices sink lower in 2026. Pairing this with the Vanguard S&P 500 ETF (VOO) allows investors to implement the strategy using accessible exchange-traded funds.

Investors must weigh the speed of recovery against long-term growth potential. Since 1950, the 60/40 portfolio has produced an annualized return of 9.4 percent, compared to 11.7 percent for the S&P 500. This lower return is the cost of downside protection, though current bond valuations may make that trade-off less expensive than in previous years.