Fine print
- The data are from Yahoo
- The S&P 500 stocks are used (as implied by S&P on 2014 January 11) that still survive with the same symbol
- The initial post was “Replacing market indices”
- The R code is in marketportrait_funs.R — you are free to use these functions however you like
It looks like the SLM misses a stock split of May 1, 2014. As it’s looks like down only about -4% rather than -75% as the YTD chart suggests. Similar situation for DISCA, it has a stock split on Aug 7, 2014, down only -5.5% YTD. CLF and COH are correct.