You may not know this, but there is a joke in the investment world that October is the worst month in which to invest. It’s easy to get swept up in the seasonal chatter about how this month is supposedly more dangerous for the markets than others.

But before diving into these claims, here are some wise and witty words from Mark Twain:

“October: This is one of the peculiarly dangerous months to speculate in stocks. The others are July, January, September, April, November, May, March, June, December, August and February.”

Twain’s remark, laced with humour, reveals a deeper truth about investing that transcends the quips about October—or any month for that matter. The reality is that speculation in the markets carries inherent risks year-round. The idea that a particular month is uniquely treacherous is more a product of market folklore than financial fact.

Why do these myths persist?

Behavioral finance offers us an interesting perspective. Human nature gravitates toward patterns, even when none truly exist. This tendency, known as “pattern recognition,” has roots in our survival instincts—finding patterns in nature helped our ancestors predict seasonal changes and avoid dangers. But in the world of investing, this can lead us astray. It encourages a mindset that looks for reasons outside of solid financial fundamentals to explain why the market is up or down, creating unnecessary fear or excitement.

October has, admittedly, earned a notorious reputation due to significant historical market events, like the stock market crash of 1929 and Black Monday in 1987. But focusing solely on these moments overlooks the fact that positive gains and notable market recoveries have also taken place in October and every other month. If you find yourself overly focused on the stories surrounding specific months, it may be a sign to revisit your overall financial strategy and ask yourself: Is my approach to investing being influenced by these seasonal fears?

The best way to navigate any month of investing is not by trying to predict or time the market, but by relying on time-tested principles of financial planning. Diversify your portfolio, stick to a disciplined investment strategy, and maintain a long-term perspective. Remember that emotional decision-making often leads to short-term fixes that can harm your long-term financial health.

This is where lifestyle financial planning comes into play. A plan built on your life’s goals rather than market headlines allows you to make decisions that align with your deeper values and aspirations. When your financial strategy is rooted in what truly matters—retirement dreams, family security, or leaving a legacy—it becomes easier to ignore the noise of market myths.

Every time a scary month arrives, consider this month just like any other—a time to review your portfolio, consult your financial planner, and stick to your long-term goals. Because in the end, as Twain subtly suggests, every month comes with its share of risks and opportunities. The key is to approach them not with fear or speculation, but with strategy, understanding, and confidence in the plan that serves your life, not just your portfolio.