Later tonight, the Dow Jones Industrial will have a new look. Instead of Walgreens Boots Alliance, Amazon.com will be part of the index. This comes as Walmart conducts a 3-to-1 stock split, cutting its stock weighting in the index. So what does that mean for the Dow Jones index and Amazon.com? Why was Amazon selected? On Money in the Market, Hongbin Jeong speaks to Abhishek Vishnoi, Senior Reporter for Equities at Bloomberg, to find out more.