For as long as it has been around, investors have made a big deal about the Dow Jones Industrial Average. Like it or not, that may never change, but the reality is the Dow is home to just 30 stocks. In other words, it's not the most accurate representation of U.S.-listed stocks.

Heck, it's a price-weighted index, meaning the most expensive stock of the 30 by price tag, regardless of market cap, has the most pronounced impact on the Dow's daily performance.