The data for December 2017 is preliminary, but since we’re coming up on the end of the year, we couldn’t resist updating one of our favorite charts showing the periods of relative order and chaos in the S&P 500 since December 1991!

If you would like to access the data for any of the months for which we’ve have finalized data in the above chart, or for that matter, for any month since January 1871, we make it available through our S&P 500 At Your Fingertips tool, which will also indicate the rates of return, both with and without the effects of inflation and dividend reinvestment, between any two calendar months within our dataset.