The Dow Jones Industrial Average (DJINDICES:^DJI) has had a great year so far in 2013, returning 19.1% to investors. What's a little surprising are the companies that have led the way for the Dow.

Boeing (NYSE:BA) leads by a mile with a 61% jump, even though its flagship 787 Dreamliner was grounded earlier this year. United Technologies (NYSE:UTX) has shrugged off lower military spending to gain 36.5%, and United Health (NYSE:UNH) has jumped 35% as investors become less worried about the impact of Obamacare on earnings, even seeing it as a strength in some cases. In the video below, Fool contributor Travis Hoium discusses how these stocks have outpaced the Dow as a whole.

Fool contributor Travis Hoium has no position in any stocks mentioned. The Motley Fool recommends UnitedHealth Group. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.