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| E&S Review |
Data manipulated by these statistical methods are frequently revised without clear notification to the public, especially when administrations or public policies change.
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Social Media Sells Bad Theories To The Public Without Proper Push Back
#Markets don’t crash in November or December for 79 years.
The US stock market (using the S&P 500 as a proxy) has experienced declines of 10% or more in November on multiple occasions. Examples include:
• 1973: -11.39%
• 1929: -11.78%
• 1931: -17.66%
• 1940: -13.34%
• 1946: -14.42%
Yes, it has also experienced declines of 10% or more in December on multiple occasions. Examples include:
• 1931: -14.53%
• 1930: -15.51%
• 1937: -11.02%
• 1946: -15.13%
These figures are based on month-end closing prices. Such large single-month drops are rare, especially in these seasonally stronger months, and often occurred during major economic crises like the Great Depression or oil shocks.
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Thanks for doing this research https://t.co/6VECdEDlbg
— Peter Brandt (@PeterLBrandt) November 7, 2025
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The discipline of social media influencers, recently discussed in our update to the E&S Report, is often characterized as a “coin-flip” strategy. That is, roughly 50/50 odds of being correct. The reason is simple: influencers frequently cherry-pick data to reinforce their preferred narratives.
Today's theory is that November and December seasonal bullish tendencies can be smashed by sharp, unexpected declines.
A quick glance at the data from that social media post shows that almost every "unexpected" decline occurred amid primary downtrends. The lone exception was November 1929 which registered a primary uptrend of just 1.8%. Rule #1 in the Evolution of the Trade, which we repeat regularly, never fight the primary trend. Markets didn't drop due to seasonality, the primary trend was DOWN. Today, the S&P 500's primary trend is up and LTCO equals 54.9%. Influencers selling the idea of a November/December crash to a gullible public. It's still a low-probability bet in 2025.
November:
• 1973: -11.39% - Primary Trend DOWN
• 1929: -11.78% - Primary Trend UP, LTCO = 1.8%
• 1931: -17.66% - Primary Trend DOWN
• 1940: -13.34% - Primary Trend DOWN
• 1946: -14.42% - Primary Trend DOWN
December:
• 1931: -14.53% - Primary Trend DOWN
• 1930: -15.51% - Primary Trend DOWN
• 1937: -11.02% - Primary Trend DOWN
• 1946: -15.13% - Primary Trend DOWN
Today • 2025: ????? - Primary Trend UP, LTCO = 54.9%
Seasonality For S&P 500
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