STOCK MARKET CRASHES: More Likely in the Fall?

By Dr. David Edward Marcinko MBA MEd

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+ Plus / – Minus Two Weeks

Stock market crashes have long been associated with the fall season, particularly October, which has earned a reputation as a month of financial turmoil. While crashes can occur at any time, the clustering of several historic downturns in autumn has led many investors to believe that markets are more vulnerable during this period.

Historical Patterns of Fall Crashes

Some of the most devastating collapses in financial history have taken place in the fall. The Wall Street Crash of 1929 began in late October and marked the start of the Great Depression. In October 1987, markets experienced “Black Monday,” when the Dow Jones Industrial Average plunged more than 20% in a single day. More recently, the global financial crisis of 2008 saw some of its steepest declines in September and October. These events have cemented autumn’s reputation as a season of heightened risk.

Why the Fall Is Riskier

Several factors contribute to the perception that fall is a dangerous time for markets:

  • Investor psychology: The memory of past crashes in October can heighten anxiety, making traders more prone to panic selling.
  • Fiscal cycles: Many institutional investors close their books at the end of September, leading to portfolio adjustments and sell-offs in October.
  • Economic data releases: Key reports on employment, corporate earnings, and government budgets often arrive in the fall, influencing sentiment.
  • Global events: Political and economic developments frequently coincide with autumn months, adding uncertainty.

Statistical Evidence and Skepticism

Despite the historical examples, statistical studies suggest that crashes are not inherently more likely in October than in other months. Market downturns are rare events, and their clustering in autumn may be more coincidence than causation. Crashes have also occurred outside the fall, such as the bursting of the dot-com bubble in spring 2000 and the COVID-19 crash in March 2020. This suggests that the so-called “October Effect” may be more psychological than empirical.

Lessons for Investors

Whether or not fall crashes are statistically more likely, the historical record offers important lessons:

  • Diversify investments to reduce vulnerability to sudden downturns.
  • Avoid panic selling, since many crashes are followed by rapid recoveries.
  • Prepare for volatility, as autumn often brings heightened uncertainty.

Conclusion

Stock market crashes are not guaranteed to happen in the fall, but history has made October synonymous with financial turmoil. The clustering of major downturns during this season has created a psychological bias that influences investor behavior. Whether coincidence or pattern, the lesson is clear: autumn is a time when vigilance, discipline, and preparation are especially important for market participants.

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SPEAKING: Dr. Marcinko will be speaking and lecturing, signing and opining, teaching and preaching, storming and performing at many locations throughout the USA this year! His tour of witty and serious pontifications may be scheduled on a planned or ad-hoc basis; for public or private meetings and gatherings; formally, informally, or over lunch or dinner. All medical societies, financial advisory firms or Broker-Dealers are encouraged to submit an RFP for speaking engagements: CONTACT: Ann Miller RN MHA at MarcinkoAdvisors@outlook.com -OR- http://www.MarcinkoAssociates.com

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BLACK MONDAY REDEUX: Interesting Day or Financial Crisis?

BILL ACKMAN versus JIM KRAMER

By Staff Reporters

SPONSOR: http://www.CertifiedMedicalPlanner.org

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Interesting Day?

Markets: Last week’s market bloodbath will go down in the history books. The S&P 500’s 10% plunge on Thursday and Friday, after President Trump announced massive tariffs, ranks among the steepest two-day decline in the last 70 years, on par with Black Monday in 1987, the post-Lehman Brothers rout in 2008, and the Covid plunge in March 2020. More than $6 trillion was wiped out from stocks over two days, and the NASDAQ entered a bear market, down 20% from a previous high.

Trading restarted at 9:30 am ET for what Bill Ackman predicts will be “one of the more interesting days in our country’s economic history.”

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Monday Crash?

On the other hand, CNBC host and market commentator Jim Cramer just warned that America is in store for another “Black Monday” market crash similar to the record 1987 collapse if President Trump doesn’t curtail his tariff plan.

Cramer — who noted that the 1987 crash saw the Dow Jones Industrial Average fall by 22.6% in a single day — said the bloodbath could be repeated after the brutal two-day sell-off following the announcement of Trump’s sweeping tariffs against nearly 90 countries.

If the president doesn’t try to reach out and reward these countries and companies that play by the rules, then the 1987 scenario … the one where we went down three days and then down 22% on Monday, has the most cogency,” Cramer said on his show Saturday, referencing the worst single-day fall in the history of the Dow.

QUESTION: Who is correct; Ackman or Cramer?

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