Here’s why September and October are historically weak for stocks

Sep 11, 2024 at 10:55 AM

The Haunting History of Wall Street's Autumn Woes

The stock market's tendency to experience weakness during the months of September and October has long been a source of fascination and speculation. Delving into the historical roots of this phenomenon, we uncover a tale of financial fragility, agricultural cycles, and the pivotal role of the Federal Reserve in shaping the stability of the U.S. financial system.

Uncovering the Haunting Patterns of Wall Street's Autumn Woes

The Echoes of Panics Past

The unsettling pattern of September and October being historically weak months for stocks can be traced back to the 1800s, when the most intense financial panics on Wall Street tended to occur during the late summer and early autumn. From the Black Friday of 1869 to the Panic of 1873 and the Panic of 1907, these tumultuous events have left an indelible mark on the collective psyche of the financial world.Delving deeper, we uncover the underlying factors that contributed to this seasonal vulnerability. Prior to the establishment of the Federal Reserve in 1913, the U.S. financial system lacked the flexibility to respond effectively to market conditions. The inelasticity of the currency, coupled with the agricultural financing cycle, created a perfect storm of cash shortages in New York City during the autumn months.

The Agricultural Financing Cycle: A Catalyst for Chaos

In the 1800s, the U.S. economy was heavily reliant on agricultural production. During the first eight months of the year, American farmers had a limited need for capital, allowing excess funds held in state banks to be shipped to New York banks or trust companies in search of higher returns. However, when harvest time arrived in August, state banks began withdrawing their capital from New York to fund the transactions required to ship crops to market.This agricultural financing cycle created chronic cash shortages in New York City during the autumn months. If these shortages coincided with a financial shock, the limited flexibility of the system made it difficult to prevent a full-blown panic. The inability of the government to respond effectively to these crises was a primary driver for the passage of the Federal Reserve Act in 1913.

The Federal Reserve: A Stabilizing Force

The creation of the Federal Reserve marked a significant turning point in the stability of the U.S. financial system. Endowed with the power to serve as a lender of last resort during financial crises, the Fed was able to provide a more robust and coordinated response to market disruptions.Comparing the frequency, intensity, and impact of financial panics before and after the establishment of the Federal Reserve, the difference is stark. While the Fed has not been without its own missteps, such as its failure to stop the contagion of bank failures in the 1930s, the overall stability of the U.S. financial system has been greatly enhanced since the Fed became operational in late 1914.

The Persistence of Autumn Woes: A Self-Fulfilling Prophecy?

Even as the U.S. economy has evolved, moving away from its agricultural roots, the tendency for September and October to be weak months for stocks persists. Some experts suggest that this may be a case of a self-fulfilling prophecy, where the repeated occurrence of these autumn panics has ingrained a deep-seated fear in the collective psyche of investors.People tend to fear things that have happened before, even if they don't fully understand the origin of the fear. The expectation of autumn woes may lead investors to reduce their risk exposure during the late summer and early fall, thereby contributing to the very patterns they seek to avoid. This psychological phenomenon, rooted in the haunting history of Wall Street's autumn turmoil, continues to shape the ebb and flow of the markets to this day.As we delve into the rich tapestry of financial history, the story of September and October's weakness for stocks emerges as a cautionary tale of the enduring impact of past events on the present. The lessons learned from these haunting patterns serve as a reminder of the importance of understanding the past to better navigate the future.