Fact File: S&P 500 Sigma Events, slight return

Fact File: S&P 500 Sigma Events, slight return

In keeping with the theme of recent weeks, I am doing a deeper dive into S&P 500 data. This week sees me updating an article originally published almost 8 years ago about the history of sigma events for the S&P 500. Or, as I like to call it the catalogue of,...