Dow Jones 65 Composite Average
  
The Dow Jones 65 Composite Average is an index...you know, a group of securities that rep a market. In particular, it’s a group of 65 large and public companies, representing utilities, transportation, and industry (like manufacturing and construction). 30 of those stocks are the same ones in the Dow Jones Industrial Average, 20 are from the Dow Jones Transportation Average, and 15 from the Dow Jones Utility Average.
Hold up...that’s three markets in one index, though?
Yeah. Actually, the Dow Jones 65 Composite Average is price-weighted for each of those three markets, which means that each of the 65 companies’ securities in the index are weighted by the price per share. The bigger the price of your share, the more weight you’ll have in the index.
Other big indices, like the superstar Dow Jones Industrial Average, is weighted via market capitalization, which multiplies the number of shares by the price of the share. The number of shares don’t affect the Dow Jones 65 Composite Average...nope, nada. Because not all indexes (yeah, you can use “indexes” or “indices”) are calculated the same, you gotta make sure you know what’s going on with them behind the scenes to really know what you’re looking at.
The Dow Jones 65 Composite Average used to be a good measure of the economy when utilities, transportation, and industrial doings made up most of the economy. But these days, technology, healthcare, and finance are dominating the scene. So this index is, well, going out of style. It happens to the best of us.