U.S. Equities Face Rising Seasonal Volatility Ahead of the Midterm Elections

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From the perspective of the full-year average trend in market volatility indicators, U.S. equities typically tend to experience an expansion in volatility after entering August. The VIX Index, which reflects market expectations for volatility, shows a clear pattern of seasonal rebound. This is particularly evident in U.S. midterm election years, when the VIX often begins to rise intermittently from mid-August, with the uptrend typically extending until around mid-October before peaking and retreating.

This suggests that over the coming months, U.S. equities may face two simultaneous headwinds: a seasonal increase in volatility and heightened uncertainty surrounding the midterm elections. Given that the VIX usually exhibits a negative correlation with major equity indices, an expansion in volatility often reflects rising market risk aversion and may also be accompanied by increased pressure for equity market pullbacks.

As such, investors may need to adopt a more cautious stance toward U.S. equities in the coming months, particularly as seasonal volatility pressures coincide with rising election-related uncertainty.