At Associated Investor Services, we know that headlines about a possible U.S. government shutdown can spark concern. The reality, however, is that markets have historically shown resilience in the face of these events. While shutdowns may create short-term volatility, the long-term impact on portfolios has generally been limited.
Since 1976, there have been roughly 20 shutdowns, most lasting only a few days. During these periods, the S&P 500 has moved in both directions — falling 4.4% during the 1979 shutdown, but gaining over 10% during the 2018–2019 episode. More importantly, in the 12 months following shutdowns, stocks have delivered positive returns in 18 out of 20 instances.
Economically, prolonged shutdowns do leave a mark — the five-week closure in 2018–2019, for example, shaved 0.3% off GDP across two quarters. But in most cases, lost output has proven temporary, with markets refocusing on fundamentals once the political drama subsided.
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How Do Government Shutdowns Affect Markets?