Figure 8: Daily prices of the S&P500, of the Dow Jones, and of the sum of 9 DJIA stocks listed on the NYSE over the period from January 1, 1962, to July 07, 2017 (13,812 points). The companies included are GE (General Electric), AA (Alcoa), IBM (International Business Machines), KO (Coca-Cola), BA (Boeing), CAT (Caterpillar), DIS (Walt Disney), HPQ (Hewlett-Packard), and DD (DuPont).