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October is historically the most volatile month for stocks. But why? These 4 popular theories fail to hold up.

October is historically the most volatile month for stocks. But why? These 4 popular theories fail to hold up.
MarketWatch Monday 28 September 2026, 20:02 UTC By Mark Hulbert 1 min read
Key Points

Although October historically has been the most volatile month of the year, you shouldn’t bet that it will continue to be in the future.

Although October historically has been the most volatile month of the year, you shouldn’t bet that it will continue to be in the future. [Image text:] October2026 Fri Thu Wed 2 Tue 1 10 Mon 9 Sun 8 16 6 5 15 14 23
Originally published by MarketWatch Read original →

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