Stocks Had Their Best Day in 3 Months and Worst in 19 Months Last Week. Here’s What the Data Says About Selling Right Now.

Investors may be experiencing a mix of shock and relief after the stock market's rollercoaster ride over the past two weeks. The S&P 500 surged by 1.6% just days after the midterm elections, marking its best single-day performance since August. However, the market quickly turned sour the following day, plummeting 4.4%, its worst daily drop since April 2025. The Nasdaq Composite faced an even steeper decline, dropping 5.5% after a brief 1.4% rally.

Adding to the uncertainty, the VIX, a measure of market fear, spiked to 28, its highest level since April 2025, during the sell-off. This volatility index, often dubbed the "fear index," can be unsettling for investors. However, succumbing to fear and selling off assets could prove detrimental to long-term wealth-building efforts.

While Treasury bonds offer a safe haven with predictable returns, they may not generate the same level of financial growth as the stock market. Historically, the stock market has excelled at building wealth over the long term, though this comes with the inevitable ups and downs of volatility.

The key to successful investing lies in maintaining a balanced approach. During periods of heightened market volatility, it's crucial to stay invested and avoid selling when stocks experience one of their worst days. In fact, six of the S&P 500's ten best days between 2006 and 2025 occurred within two weeks of its ten worst days. This suggests that buying into market weakness can lead to significant gains in the days that follow.

For investors with a longer-term perspective, volatility can present valuable opportunities. Five of the ten best days in the market between 2006 and 2025 occurred the day after one of the market's worst days. This indicates that acting decisively during market crashes and purchasing stocks at discounted prices can be highly rewarding.

However, it's essential to have a clear investment thesis and ensure that an individual stock's price drop is not due to a fundamental change in its business outlook. By understanding the factors that influence a company's future financial performance, investors can make informed decisions and capitalize on market volatility to achieve long-term success.