Inversely correlated assets predictably move in different directions. Stock investors look for inversely correlated sectors in order to mitigate risk in their portfolios. For example, an investor may see great opportunity in the transportation sector and might buy stocks in airlines, shipping companies, and railroads. But to hedge against risk, the investor might also put some money into energy stocks. If gasoline prices soar, the profits of the transportation companies may suffer but energy companies should do well.