The Investment Fiduciary

Stock market just had worst 10 years in history

Posted by: investment-fiduciary on: April 1, 2009

Out of curiosity, I took the S&P 500 annual return data since 1926, calculated the index’s moving 10-year returns and produced the chart below. Two things are worth noting:

1. The 10 years ending 2008 are the worst ever for the index, with a total return of -13%.

2. The S&P 500’s 10-year return dynamic seems to follow a periodic pattern. The second worst 10-year period ended  in 1938 (-9%); and the third worst 10-year period ended in 1974 (13%), almost right in the middle of 1938 and 2008. Serendipity?

S&P 500 10-year return dynamic

S&P 500 10-year return dynamic

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4 Responses to "Stock market just had worst 10 years in history"

S&P 500 10 year return data is also available here: http://www.nytimes.com/2009/02/07/business/07charts.html .

Paul,

Thx for the link. The NYT chart uses a monthly data grid and I used a annual data grid. Otherwise, the result is the same.

Michael

I thought the S&P500 only came into being in the 1950s, and thus did not exist during the Great Depression?

It was reconstructed back to 1926.

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Author

Michael Zhuang is principal of MZ Capital, a fee-only RIA and DFA-approved advisor based in Washington, DC. He is also a regular contributor to Morningstar Advisor. Michael can be reached at info1@mzcap.com.

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