As an investor, you’ve probably heard the phrase “buy low, sell high” many times. It sounds like a smart strategy. After all, it seems intuitive to buy when prices are low and sell when they’re high. However, trying to time the market is far from easy and, in most cases, causes more harm than good.
Today, we’re going to discuss why attempting to time the stock market is a big mistake, and more importantly, what you should do instead.
the Danger of Timing the Market: A Real-World Example
On August 5, 2024, the stock market experienced a significant 3% drop—the biggest single-day decline in about a year. That same day, a client called me in a panic, asking, “Should I sell now and buy back when the market recovers?”
It wasn’t hysteria—a 3% drop on a seven-figure investment is a substantial paper loss. But that’s exactly the key: it was a paper loss, not a real loss. Unless you sell, those losses aren’t realized.
I told him what I often tell clients in moments like these: “Sit tight. We have a plan, and it will work out.” The problem wasn’t the market or even his portfolio—it was human psychology.
Markets work efficiently when investors act rationally, but if you’ve spent any time studying the market, you know that people often don’t act rationally. And that’s where the trouble begins.
Understanding "The Market"
When we talk about “the market,” we’re often referring to the S&P 500, a stock market index that tracks the performance of 500 of the largest companies listed on U.S. stock exchanges.
The S&P 500 accounts for roughly 80% of the total market capitalization of U.S. public companies, offering broad diversification. This means that if one company’s stock plummets, the impact is cushioned by the other 499 stocks.
Although the S&P 500 is diversified, significant macroeconomic events—like the Bank of Japan raising interest rates—can still trigger short-term fluctuations.
It’s important to note that the summer months, like August, tend to be quieter for trading, which can amplify sudden market swings.
Human Psychology and the Noise from Media
The emotional side of investing plays a massive role in decision-making. Common feelings such as fear, anxiety, and greed often drive investor behavior, especially for those who are less experienced.
The financial media also fuels these emotions. Networks like Bloomberg and CNBC thrive on generating market activity. They want you to react, to buy and sell more frequently.
Add to this the “doomsday preachers” like Robert Kiyosaki, who frequently predicts economic collapse. During the COVID-19 pandemic, Kiyosaki even advised investors to sell all financial assets and invest in canned goods!
On the more credible side, we have investors like Michael Burry, the hedge fund manager made famous in The Big Short. While Burry also predicts market downturns, his track record carries more weight.
But even with experts like Burry, it’s essential to remember that being correct once doesn’t make anyone a fortune teller.
Lately, social media and forums like Reddit have intensified market hysteria.
Remember the meme stocks like AMC, with popular phrases like “To the Moon” and “HODL” (Hold On for Dear Life)? These kinds of movements can further cloud rational decision-making.
There Will Always Be a Reason to Sell
One of the best analyses of human behavior and the stock market comes from Morgan Housel, author of The Psychology of Money. Housel points out that no matter the period, there’s always been a compelling reason to sell.
Let’s take a quick history tour:
- September 1947: After WWII, economists warned of a massive economic depression. The stock market doubled over the next four years.
- 9/11
- The Great Financial Crisis of 2008
- The COVID-19 Pandemic
- Supply Chain Crisis
- Global Inflation
- The Russian Invasion of Ukraine
Each of these events created fear and uncertainty, but history shows that markets tend to recover and continue their upward trajectory. This pattern reinforces the importance of patience and long-term thinking.
Why Staying Invested is Key
Now, let’s address the elephant in the room—timing the market. Trying to predict when the market will hit its lows or highs is not only extremely difficult, it’s also risky.
Many investors attempt to time the market out of fear (selling to avoid losses) or greed (buying to chase gains).
A JP Morgan study covering 20 years of market data clearly illustrates the risks. Here’s what they found:
- If you had invested $10,000 in the S&P 500 on January 1, 2003, and remained invested through December 30, 2022, your portfolio would have grown to $64,844.
- But if you missed just the 10 best days in the market, your portfolio’s value would shrink to $29,708—less than half.
- Miss the 60 best days? Your portfolio would lose 93% of its value, leaving you with just $4,205.
What’s more, the best days often occur during periods of high volatility, when the market feels most uncertain. Seven of the 10 best days in the past 20 years happened during bear markets.
Wrapping Up: Build a Robust Financial Plan
Whether you’re in the accumulation phase or the preservation phase of wealth building, having a solid financial plan is essential. If you ever find yourself panicking or feeling tempted to sell, it might be a sign that you need to revisit your strategy.
Let’s end with a wise quote from Peter Lynch, one of the most successful investors of all time:
Video Explanation
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About the Author:
Kevin Elliott is a Financial Planner, and quantitative finance expert with over 18 years of experience in global financial markets. He has worked with top-tier institutions such as Bank of New York, Bridgewater Associates, RBS, CIBC, UniCredit, and Bank of America, where he served as Director in New York.
Holding a BSc in Economics and Finance and a Graduate Diploma in Financial Planning from University College Dublin, along with an MBA from Imperial College London, Kevin combines deep technical expertise with a passion for personal finance and wealth building.
Kevin is committed to helping individuals take control of their finances, invest wisely, and build long-term wealth. With a knack for simplifying complex financial concepts, he provides actionable insights on investing, retirement planning, and financial independence.
Whether you’re a beginner looking to start your wealth journey or a seasoned investor fine-tuning your strategy, Kevin offers practical guidance, expert analysis, and proven strategies to help you achieve financial freedom and security.
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