Just three stocks are responsible for almost half of the Dow’s huge one-month rally By: CNBC.com News December 05, 2016 at 07:47 AM EST A quirk of the Dow's construction and a bit of luck have combined to help the 30-stock index outperform mightily. Read More >> Related Stocks: Caterpillar Goldman Sachs Group JPMorgan Chase & Co UnitedHealth Group