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October is the stock market's most volatile month. Here's what 95 years of data shows
The 95-year study found October’s swings are driven by earnings cycles, news bursts and market shocks, analysts said.
- Analysts conducting a 95-year review of U.S. stock market data identified October as the most volatile month for equities, serving as a key indicator for market trends.
- Historically, October has earned the nickname 'bear killer,' as the month frequently coincides with major market reversals while also producing sharp, unexpected gains.
- Eight of the 20 largest single-day percentage declines in U.S. stock history occurred during October, including the infamous 1987 crash and 2008 financial crisis.
- Significant swings in either direction often follow these extreme events, with sharp rebounds sometimes appearing after steep drops, creating both substantial risk and opportunity.
- Market conditions vary annually based on monetary policy and corporate earnings, meaning historical patterns do not guarantee future October performance, though understanding trends helps manage expectations.
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17 Articles
Coverage Details
Total News Sources17
Leaning Left3Leaning Right0Center14Last UpdatedBias Distribution82% Center
Bias Distribution
- 82% of the sources are Center
82% Center
L 18%
C 82%
Factuality
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