Updated 6 p.m. ET If you buy into old trader tales and theories, then you might find something to like on the charts of two Dow Jones indexes. A nearly century-old theory, "Dow Theory" says that moves in the Dow Jones Industrial Average should follow the trend of the similarly-situated Dow Jones Transportation Average to make a durable trend, and vice-a-versa. Only, they haven't been doing that. Year-to-date, the DJIA is up 8.72%, while the Transportation Average is down -2.5%. And while the theory migh ...