What Happens If You Invest Right Before a Market Crash?

Why Investors Fear Investing Before a Market Crash

It is normal for investors to fear that there will be a big drop after investing, especially if a large amount of money comes in at once. Money that has been accumulated over the years and for which we have worked hard to provide for ourselves or our loved ones is a serious matter and we do not want to lose it lightly.

What can easily happen is that the money that we have saved for years and decided to invest can be cut in half at the moment if we hit a bad time to invest. Imagine so many years of hard work, suffering and saving and then suddenly losing value in a moment. You would surely wonder yourself why you invested money.

Example: Investing $200,000 Right Before a Market Crash

Now we will consider the simplest example of what a market crash looks like in practice.

Imagine that you have, for example, $200,000 worth of money and you decide to invest in one of the ETFs in order to preserve the value of your money and increase it over time. Guided by the idea that over time the value should increase, you enter this story with great optimism.

However, after only two weeks of the invested money, the value of the shares you bought drops by 25% (I actually experienced this 25% drop with the S&P 500 index).

Now the value of your shares is not $200,000 but you have lost one quarter of that money ($50,000). So you went from $200,000 to $150,000. This is a big fall and a heavy blow for you, your investment and your plans in general.

What should be considered is that now if you withdraw all the remaining money, you have permanently lost $50,000 and made a bad financial move by investing $200,000. This is a typical example that happens in practice and certainly none of us want this to happen.

Historical Market Crash Examples

Now we can look at a real historical example to see what actually happened during major market downturns in the past.

The 2008 Financial Crisis

One of the most well-known market crashes occurred in 2008, and it unfolded roughly like this:

• Start of the decline: October 2007
• Market bottom: March 2009

In total, the downturn lasted about 17 months before the market began to recover. During that period, the market fell by approximately 57% from its peak to its lowest point.

This example shows how severe market crashes can be and how long they may last before a recovery begins.

Month	Portfolio Value ($)	Drop from Start
0	$200,000	0%
1	$190,313	-4.84%
2	$181,096	-9.45%
3	$172,325	-13.84%
4	$163,979	-18.01%
5	$156,037	-21.98%
6	$148,479	-25.76%
7	$141,288	-29.36%
8	$134,445	-32.78%
9	$127,933	-36.03%
10	$121,737	-39.13%
11	$115,841	-42.08%
12	$110,231	-44.88%
13	$104,892	-47.55%
14	$99,811	-50.09%
15	$94,977	-52.51%
16	$90,377	-54.81%
17	$86,000	-57%

If an investor had invested $200,000 at the very beginning of this decline, the portfolio would have dropped to about $86,000 after 17 months, as shown in the table.

In other words, if the investor had waited 17 months before investing, they would have avoided a loss of roughly $114,000 — which is clearly not a trivial amount.

In fact, a difference of this size can significantly impact many financial plans. When larger sums are involved, it can even influence major life decisions.

The COVID-19 Stock Market Crash (2020)

Start of the decline: February 19, 2020 → ~3,386
Market bottom: March 23, 2020 → ~2,237
Total drop: about −34%

Although this crash was smaller (around −34%), it was much faster and more abrupt than the one described in the previous section. The entire decline happened in just about one month.

Let’s again look at what this would mean using an example investment of $200,000.

Week	Portfolio Value ($)	Drop from Start
0	$200,000	0%
1	$189,000	-5.5%
2	$170,000	-15%
3	$150,000	-25%
4	$132,000	-34%

In this case, you would lose $68,000 in just one month, which represents a significant financial hit and a serious psychological shock for most investors.

Simulating a Market Crash Using an Investment Calculator

To see what happens when stocks fall sharply, it is best to use an interactive calculator tool. It allows you to try out various combinations with negative rates.

For example, -34% looks like this: stock market crash simulator

In the "Rate %" field, you can enter different negative values and thus check how much the value of money has fallen.

Comparing Two Investors: Before vs After a Market Crash

To see the significance of the drop in investment just before the market crash, it is best to compare the two scenarios.

Investor A invests before the crash in the first year of investment. Let the sum be $200,000, the investment period be 20 years, and the interest rate be 10% after the market crash in the first year.

Investor B invests after the crash in the second year of investor A's investment. Let his sum be the same ($200,000), the investment period be 19 years to overlap with the end of investor A's investment, and the average interest rate be the same (10%) as investor A's.

You can see the table for investor A below and also try this simulator - Investor A simulation

Year	Start Amount	Total
1	200,000.00	132,000.00
2	132,000.00	145,200.00
3	145,200.00	159,720.00
4	159,720.00	175,692.00
5	175,692.00	193,261.20
6	193,261.20	212,587.32
7	212,587.32	233,846.05
8	233,846.05	257,230.66
9	257,230.66	282,953.72
10	282,953.72	311,249.10
11	311,249.10	342,374.00
12	342,374.00	376,611.41
13	376,611.41	414,272.55
14	414,272.55	455,699.80
15	455,699.80	501,269.78
16	501,269.78	551,396.76
17	551,396.76	606,536.43
18	606,536.43	667,190.08
19	667,190.08	733,909.09
20	733,909.09	807,299.99

You can see the table for investor B below and also try this simulator - Investor B simulation

Year	Start Amount	Total
1	200,000.00	220,000.00
2	220,000.00	242,000.00
3	242,000.00	266,200.00
4	266,200.00	292,820.00
5	292,820.00	322,102.00
6	322,102.00	354,312.20
7	354,312.20	389,743.42
8	389,743.42	428,717.76
9	428,717.76	471,589.54
10	471,589.54	518,748.49
11	518,748.49	570,623.34
12	570,623.34	627,685.68
13	627,685.68	690,454.24
14	690,454.24	759,499.67
15	759,499.67	835,449.63
16	835,449.63	918,994.60
17	918,994.60	1,010,894.06
18	1,010,894.06	1,111,983.46
19	1,111,983.46	1,223,181.81

What can be concluded is that although in the first year the investor loses only $68,000 after the first year, the long-term decline after 20 years is much greater than the investor who got the timing right after the big market crash and amounts to 1,223,181 - 807,299 = 415,882. You have to admit that the difference of 415,882 is not negligible at all.

In other words, investor B managed to collect approximately 50% more capital than investor A.

However, it is important to understand that this comparison is based on perfect timing. While investing after a crash leads to better outcomes in hindsight, this assumes perfect timing. In reality, most investors are unable to consistently identify market bottoms, which makes such strategies difficult to implement.

Why Timing a Market Crash Is Extremely Difficult

Although the comparison between the two investors clearly shows the advantage of investing after a market crash, identifying the exact moment when a crash will occur is extremely difficult in practice.

Financial markets are influenced by a large number of unpredictable factors. Economic recessions, geopolitical conflicts, interest rate changes, financial crises, and unexpected global events can all trigger market declines. These events often occur suddenly and without warning.

Even professional investors, economists, and financial analysts rarely succeed in consistently predicting market crashes. Many market declines appear obvious only in hindsight, once the event has already occurred.

The COVID-19 market crash provides a good example. The rapid spread of the virus and the resulting economic shutdowns caused one of the fastest market declines in history. However, very few investors predicted the exact timing of the crash before it happened.

Because market timing is so difficult, many long-term investors focus on strategies that do not rely on predicting market crashes. Instead, they concentrate on long-term investing, diversification, and gradual portfolio growth over time.

Understanding how market crashes affect investments can still be valuable, however. It helps investors prepare psychologically for periods of volatility and better understand the risks associated with investing large sums of money at a single point in time.

Key Lessons from Investing Before a Market Crash

Investing shortly before a market crash can lead to significant short-term losses, especially when a large amount of money is invested at once. Historical examples such as the 2008 financial crisis and the COVID-19 crash demonstrate that market declines of 30% to 50% are possible and can occur surprisingly quickly.

The timing of an investment can therefore have a meaningful impact on long-term portfolio growth. As illustrated in the comparison between two investors, starting an investment immediately before a major decline may reduce the long-term value of the portfolio compared with investing after the crash.

At the same time, predicting market crashes with accuracy is extremely difficult. Even experienced investors rarely succeed in consistently timing the market.

For this reason, tools such as investment simulators can be useful for understanding how different market scenarios affect portfolio performance. By experimenting with negative returns and various market conditions, investors can better visualize the potential risks associated with investing before a market downturn.

Ultimately, understanding these scenarios can help investors make more informed decisions and set realistic expectations about how markets behave during periods of volatility.

Frequently Asked Questions

What happens if you invest right before a market crash?

If you invest immediately before a market crash, the value of your portfolio can drop significantly in the short term. Historical examples such as the 2008 financial crisis show declines of more than 50%, although markets have historically recovered over time.

How much can the stock market fall during a crash?

Major market crashes can lead to declines of 30% to 57%, depending on the severity of the crisis. For example, the 2008 financial crisis saw a drop of about 57%, while the COVID-19 crash in 2020 caused a decline of around 34%.

Is it better to invest before or after a market crash?

Investing after a market crash can lead to better returns in hindsight, since prices are lower. However, this assumes perfect timing. In reality, most investors cannot consistently predict market bottoms, which makes timing strategies difficult to implement.

Should I wait for a market crash before investing?

Waiting for a market crash may seem logical, but it is very difficult to predict when a crash will occur. Many investors choose to invest gradually over time or follow a long-term strategy instead of trying to time the market.

How can I reduce risk when investing a large amount of money?

To reduce risk, investors often use strategies such as dollar-cost averaging, diversification across asset classes, and maintaining a long-term investment horizon. These approaches help reduce the impact of short-term market volatility.