Coming into 2016, the Dow Jones Industrials (DJINDICES: ^DJI) had something to prove, having suffered a losing year in 2015 for the first time since the 2008 financial crisis. Yet the Dow was up to the challenge, and with just a few weeks left to go, the average has gained more than 13% and might well be able to jump above the momentous 20,000 mark for the first time ever before the year is out. Along the way, it was interesting to see some of the crosscurrents within the Dow that affected its component stocks.