The 1929 Great Depression and the -89% Drawdown
The stock market being cut in half overnight is scary, but scarier still is "waiting 25 years without knowing when it will recover." The Great Depression was exactly such an event.
Peak 381 → Trough 41, About -89%
The Dow Jones Industrial Average peaked at a closing price of 381.17 on September 3, 1929. The subsequent decline didn't stop in a few days but continued for nearly three years, falling to a close of 41.22 on July 8, 1932. About -89% from the peak. It's as if $740 became $80.
People often remember only "the great crash of October 1929 (Black Thursday, Black Tuesday)," but the real pain was the slow, persistent decline over the following three years. It repeatedly seemed to rebound and then collapsed again, breaking investors' hopes many times over.
To recover principal from an -89% decline, you need a gain of about +809% (about 9x). The larger the drawdown, the exponentially larger the return needed to recover.
Time to Recover: About 25 Years
The Dow surpassed its 1929 peak again on November 23, 1954. That's about 25 years—based on "recovery of the previous peak," not recovery from the trough. This is recorded as the longest stretch in Dow history without a new high.
That said, some analyses hold that, accounting for dividend reinvestment and prices (deflation during the Depression), the real recovery point was earlier than this. Even so, the number "25 years on a nominal-index basis" is a symbol of how long recovery can drag out when the drawdown is large.
Why Did It Collapse This Badly?
Excessive margin buying (borrowing to invest in stocks) in the 1920s, chain bank failures, a sharp contraction in the money supply, and early policy-response failures all overlapped. The stock-market collapse spread into a collapse of the real economy, and U.S. unemployment soared to around 25%.
The Great Depression was also the occasion for the creation of systems like deposit insurance (FDIC) and securities regulation (SEC). It was only after the market collapsed that the "devices to keep it from collapsing" were put in place.
The Lesson It Left for Today's Investors
The Great Depression looks like the strongest counterexample to the proposition that "stocks rise over the long run." But more precisely, it's closer to the lesson that "even if it rises over the long run, the drawdowns and waiting times in between test human patience."
Even for the same -89%, the outcomes were completely different for someone who could endure without debt, with diversified assets, and no withdrawal plan, versus someone who used leverage. Knowing the maximum drawdown and recovery period in advance and investing within a manageable range is the core lesson of this event.
Preguntas frecuentes
Q. Doesn't -89% mean essentially losing your entire fortune?
It means the index fell -89%, not that every stock went to zero. Some Dow components went bankrupt and some survived. However, people who invested with credit (debt) often took an actual total loss through forced liquidation (margin calls). It's a representative case of leverage turning a drawdown into bankruptcy.
Q. Is an -89% crash like this still possible today?
It can't be predicted, but since the Great Depression, many safeguards have arisen—deposit insurance, securities regulation, the central bank's lender-of-last-resort function—making a collapse of the same magnitude harder to repeat. But "harder" is not "impossible," so an asset allocation that can endure large drawdowns is still important. Whether a crash will occur at a specific future point cannot be asserted.
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📋 Los resultados se basan en datos históricos; las rentabilidades pasadas no garantizan rentabilidades futuras.
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