Lot of financial planners assume equities give positive returns over long term which is usually defined as anything over 7 years and lot of times even 3-5 years is considered long term. Another assumption is to diversify equity portfolios across different markets. What these planners generally do-not account for are global downturns where multiple markets give negative returns over large periods of time.
In this article we show that are peaks (exuberance) of dot-com bubble there were two downturns; dot com crash and then global financial crisis which resulted in multiple large developed economies having more than decade of negative performance.
Even US markets were not spared and between 2000 to 2012, S&P 500 had negative returns. Accounting for dividends returns were flat or marginally negative. Accounting for inflation they were quite bad.

DAX, Index of 40 blue chip german companies, similarly had negative returns for more than 10 years. Accounting for dividends returns were flag or marginally negative. Accounting for inflation they were bad.

CAC 40, Index of 40 blue chip french companies, similarly had negative returns for more than 20 years. Infact after the dot com crash cac recovered only for global surge after pandemic.

Nikkei 225, Japanese index, had negative returns for more than 20 years.

So what are the takeaways from this data?
Published Aug. 20, 2025, 4:19 p.m..