My Heavenly Book ( YM ) E-mini Dow Jones ($5) futures are derivative contracts with the Dow Jones Industrial Average (DJIA) Index as an underlying asset. These mini futures are electronically traded and give investors exposure to the US stock market through 30 US blue-chip companies, but they represent only a portion ($5) of standard Dow Jones futures, which makes them more accessible. Since these are still futures, traders use them to hedge their stock portfolios against risks that are inevitable in markets.