What happens if you invest right before a stock market crash?

In the last five US crashes, an investor who put $10,000 into the S&P 500 at the exact top, reinvested dividends and held is ahead today in every case, from $16,930 (2022 peak) to $78,103 (dot-com peak). Along the way they saw their money fall as low as $4,480 and waited up to 6.6 years to break even.

Should I wait for a crash before investing?

History does not reward waiting for a perfect entry: bottoms are only obvious afterwards, and cash left waiting misses the gains in between. This is education, not advice; your timeline and need for the money matter more than any single entry point.

Are dividends included?

Yes. Every dividend SPY paid is reinvested on its ex-date. Fees, taxes and trading costs are not included.

Can I check these numbers myself?

Yes. Run a backtest of SPY from any of these peak dates with dividends reinvested. The backtester works in whole months, so its figures differ slightly from these day-exact ones.

The Worst Timing in History: $10,000 Invested at Every Market Peak, Measured Today

6 min read · Updated 2026-09-18

The fear that stops most people from investing is simple: what if I buy right before a crash? So we tested the worst case, five times over.

For each of the last five market crashes we put $10,000 into the S&P 500 (the SPY ETF) at the close on the exact day the market peaked, reinvested every dividend, and never sold. No luck, no timing, just the worst possible entry and patience. Here is what happened, using real prices through September 2026.

Backtest $10,000 from the dot-com peak →

Five of the worst days to invest, and what they became

Every one of these investors bought the top. Every one of them is ahead today. The dot-com buyer, who timed it about as badly as anyone could, has $78,103, an average of 8.1% a year over 26.5 years.

What $10,000 invested at each peak is worth today

Dot-com peak

$78,103

2008 peak

$68,309

2018 peak

$29,293

COVID peak

$24,686

2022 peak

$16,930

SPY with dividends reinvested, from the close on the peak day to the latest close.

$10,000 in SPY at each crash peak, dividends reinvested
Bought at	Peak day	Worth at the bottom	Worth today	Average per year
Dot-com peak	2000-03-24	$5,250	$78,103	8.1%
2008 peak	2007-10-09	$4,480	$68,309	10.7%
2018 peak	2018-09-20	$8,066	$29,293	14.4%
COVID peak	2020-02-19	$6,630	$24,686	14.7%
2022 peak	2022-01-03	$7,550	$16,930	11.9%

Prices and dividends from our market data, through 2026-09-14. No fees or taxes. Past performance does not predict future results.

The part nobody enjoys: the bottom

The ending is good, but the middle is brutal. At the bottom of the 2008 financial crisis in March 2009, the $10,000 was worth $4,480. The dot-com investor sat at $5,250 in October 2002.

This is where the outcome is actually decided. Every figure in the table above assumes the investor did nothing at the bottom. Selling there turns a temporary loss into a permanent one and misses the recovery that followed.

The same $10,000 at each crash's lowest point

Dot-com peak

$5,250

2008 peak

$4,480

2018 peak

$8,066

COVID peak

$6,630

2022 peak

$7,550

How long until you were even

Counting dividends, here is how long each peak buyer waited to see their original $10,000 again:

•Dot-com peak (March 2000): back to $10,000 in November 2006, 6.6 years after buying.
•2008 peak (October 2007): back to $10,000 in August 2012, 4.9 years after buying.
•2018 peak (September 2018): back to $10,000 in April 2019, 7 months after buying.
•COVID peak (February 2020): back to $10,000 in August 2020, 6 months after buying.
•2022 peak (January 2022): back to $10,000 in December 2023, 1.9 years after buying.

Waiting for the bottom sounds smarter. It rarely works.

Someone who instead bought at the exact 2008 bottom would have $152,480 today, against $68,309 for the peak buyer. Buying the COVID bottom turned $10,000 into $37,234.

But nobody knows the bottom while it is happening. The bottoms in this study came after months of bad news and looked, at the time, like the start of something worse. Waiting in cash for a better price means guessing right twice: when to get out and when to get back in. The honest comparison is not peak versus bottom, it is investing now versus sitting in cash for years hoping to be the rare person who calls it.

What this does not mean

This is one index, measured over a strong stretch for US stocks. Some markets have taken far longer to recover: Japan's stock market needed decades to regain its 1989 peak. The dot-com peak buyer here needed 6.6 years just to break even, which is a long time if you need the money.

Timing matters most for people drawing money out. A retiree withdrawing through a crash cannot simply wait, which is why sequence-of-returns risk and a diversified mix matter more than the lump-sum math above.

Test your own worst case

The real question is not whether the S&P 500 recovered. It is whether you would have held your own portfolio through its worst moment. Replay your holdings through these same crashes in the stress test, or backtest a lump sum from the March 2000 peak and see the full path, month by month.

Try it yourself

Stress Test / ScenariosReplay your own portfolio through 2008, 2020 and 2022.Open tool →Backtest PortfolioInvest a lump sum on any date and follow it to today.Open tool →Crash study: 50 ETFsHow 50 popular ETFs fell and recovered in each of these crashes.Open tool →

FAQ

What happens if you invest right before a stock market crash?: In the last five US crashes, an investor who put $10,000 into the S&P 500 at the exact top, reinvested dividends and held is ahead today in every case, from $16,930 (2022 peak) to $78,103 (dot-com peak). Along the way they saw their money fall as low as $4,480 and waited up to 6.6 years to break even.
Should I wait for a crash before investing?: History does not reward waiting for a perfect entry: bottoms are only obvious afterwards, and cash left waiting misses the gains in between. This is education, not advice; your timeline and need for the money matter more than any single entry point.
Are dividends included?: Yes. Every dividend SPY paid is reinvested on its ex-date. Fees, taxes and trading costs are not included.
Can I check these numbers myself?: Yes. Run a backtest of SPY from any of these peak dates with dividends reinvested. The backtester works in whole months, so its figures differ slightly from these day-exact ones.

Stop guessing — run the numbers on your own portfolio, free.