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5 Key Lessons I've Learned From 7 Years of Stock Market Sell-Offs

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Investors have been on such a turbulent roller coaster that it's easy to forget that the S&P 500 (SNPINDEX: ^GSPC) was up slightly through the first two months of the year.

With April coming to a close and the major indexes firmly in the red, investors may be wondering how long volatility will last, and if now is a good time to buy stocks or run for the exits.

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Here are five lessons I've learned from major sell-offs over the last seven years, and how these lessons can help you navigate market uncertainty.

Person sitting at a table,  reading a book.
Image source: Getty Images.

1. Each sell-off is different

No one knows when the market will go down or why. But we do know that the circumstances that lead to a sell-off are never truly the same.

Through the first three quarters of 2018, the S&P 500 was pretty much flat. But in the fourth quarter, it began selling off due to U.S. President Donald Trump's trade war with China in his first term. The sell-off intensified, and the index was down around 20% year to date on Christmas Eve before staging an epic recovery, ending the year down just 6.2%.

The index then shot up a staggering 7.9% in January 2019 to make up for all the Q4 losses. If you hadn't checked your portfolio for four months, it would've looked like nothing had happened.

The March 2020 pandemic-induced sell-off was a true flash crash -- amplified by the instantaneous spread of news, sophistication of modern markets, and fear. As mandates took effect and vaccines progressed, sentiment shifted from panic to viewing the pandemic as a temporary phenomenon.

After rallying a staggering 47.5% between the start of 2020 and the end of 2021, the S&P 500 fell 19.4% in 2022. The sell-off was driven by valuation concerns, rampant inflation, and supply chain challenges. 2022 was a fairly reasonable sell-off in hindsight. Cooling inflation and resilient earnings growth set the stage for another epic two-year rally in 2023 and 2024, in which the S&P 500 gained 53.2%, driven by excitement for growth trends like artificial intelligence.

As in 2018, the 2025 sell-off has been a rapid pullback in response to geopolitical tensions and tariffs. Only this time, the Federal Reserve is in a completely different position. The Federal Reserve was raising interest rates into the fall of 2018, which fueled the subsequent sell-off. Then, Fed Chair Jerome Powell reversed course and cut rates in the summer of 2019, marking the Fed's first rate reduction since 2008.