Bear Market History: Every Major Crash and Recovery Since 1929 (2026)

US equities have fallen 20% or more from a peak roughly once a decade since 1929, and every one of those declines eventually recovered. That record is the most useful thing an investor can know about bear markets, because it reframes them from unprecedented events into a recurring feature of owning equities. What varies is depth, duration and cause, not whether they happen.

What the Record Shows

Three patterns hold across the history. Most declines resolve within one to two years, but the severe ones take considerably longer. The deepest falls have coincided with damage to the banking system or a broad economic contraction rather than with a single sector unwinding. And recoveries have consistently begun while the news was still bad, which is why waiting for confirmation costs so much.

The exception that proves how bad it can get is the 1929 crash, where the decline ran to roughly 86% and took decades to recover in nominal terms. Every allocation decision should assume something in that direction is possible, even if unlikely.

Why Duration Matters More Than Depth for Retirees

For someone still contributing, a long decline is an extended buying opportunity. For a retiree withdrawing income, duration is the danger: every year underwater is another year of selling units at depressed prices, and those units never rejoin the recovery. A three-year decline and a three-month decline of identical depth are entirely different problems.

This is why the historically severe periods matter disproportionately in retirement planning. Any withdrawal plan should be tested against a multi-year decline rather than a sharp single-year one.

                Retiree with $800,000, withdrawing $48,000/yr
Fast decline and recovery (12 months down, 18 up)
  Trough balance                      $440,000
  Withdrawals during the fall          $48,000
  Units sold at depressed prices        1 year
  Balance after 5 years               $702,000
Slow decline and recovery (30 months down, 4 yrs up)
  Trough balance                      $440,000
  Withdrawals during the fall         $120,000
  Units sold at depressed prices      2.5 years
  Balance after 5 years               $514,000
Same peak, same trough percentage.
Duration cost $188,000, because the withdrawals
kept selling into a market that had not turned.
              

A cash buffer covering two to three years of spending is what converts the second scenario into something closer to the first, because it removes the requirement to sell during the underwater period.

What to Take From It

Expect roughly one decline of 20% or more per decade and one severe decline per generation. Size your allocation for the severe case rather than the average one, because the average is not what tests you. And keep near-term spending in cash: deposits at an insured institution are protected up to the FDIC limit per depositor per bank, which is what makes a multi-year decline survivable.

Inflation belongs in the same picture. Bureau of Labor Statistics consumer price data shows how much purchasing power erodes across the kind of multi-decade horizon these recoveries occupy, which is why the answer to bear-market risk is diversification rather than an exit from markets.

1. Assume a fall of 50% or more is possible for an all-equity portfolio, not merely unlikely.
2. Test your withdrawal plan against a multi-year decline, not just a sharp one-year fall.
3. Hold two to three years of spending in cash so duration cannot force sales.
4. Keep contributing through declines if you are still accumulating.
5. Diversify internationally, since one market's recovery timetable is not guaranteed.