If a Stock Market Crash Is Coming, History Says This Strategy Can Cut Your Portfolio's Recovery Time in Half

A rebalanced 60/40 stock/bond portfolio recovered from declines of at least 20% in an average of 11 months since 1988, versus 24 months for the S&P 500, according to J.P. Morgan data. It also posted positive returns in 99% of five-year periods and 100% of 10-year periods since 1989, though its annualized return since 1950 was 9.4%, below the S&P 500's 11.7%. The article notes the Vanguard Total Bond Market ETF has a 5.5% yield to maturity and presents bonds as potential downside protection amid elevated stock valuations.

Analysis

The useful takeaway is about drawdown control, not a forecast of an imminent crash. A 60/40 portfolio’s shorter historical recovery is largely a consequence of taking a smaller initial loss; it does not establish that rebalancing adds alpha or that bonds will hedge every equity selloff. In an inflation- or term-premium-driven shock, stocks and nominal bonds can fall together, as the 2022 episode illustrates. BND also is not a pure Treasury hedge: its aggregate exposure includes mortgage-backed and investment-grade credit risk.

The cited 5.5% yield to maturity, if current and comparable, improves the prospective carry cushion, but does not cap near-term losses if yields rise. Verify the observation date, duration, and yield composition before treating it as an entry signal. Meanwhile, elevated equity valuations may increase vulnerability but provide no reliable timing catalyst. Over days, this is not a standalone reason to buy bonds or short equities; over 1–3 months, inflation and rate repricing determine hedge quality; over 6–18 months, starting yields and disciplined rebalancing matter more than the historical average recovery statistic.

The contrarian gap is that “recovery time” omits the size of losses, path volatility, and investor-specific liabilities. Rebalancing into falling equities can improve subsequent participation, but can also add exposure during a prolonged decline. The backtest is a scenario reference, not a promise of positive returns.

Key Decisions for Investors

• No tactical equity short or broad bond overweight from this article alone. Treat the 60/40 comparison as a risk-budgeting input, not evidence that valuations will soon mean-revert.
• For portfolios with a strategic balanced mandate, use scheduled or band-based rebalancing rather than discretionary crash calls; stress-test simultaneous equity and duration losses before relying on bonds as the hedge.
• Before adding BND, verify the quoted yield-to-maturity date, effective duration, and Treasury/MBS/credit mix. Rising real yields or inflation expectations would challenge the hedge thesis; falling yields with contained credit spreads would support it.
• Watch the next 1–3 months of inflation data, Treasury term-premium/yield moves, and equity–Treasury return correlation. If both asset classes continue selling off together, reduce assumed diversification benefit; if bond carry accrues while yields stabilize or fall, the case for maintaining the strategic allocation improves.