While airline stocks have surged, the rally in rail and auto transport has been absent, but Union Pacific Corp. (UNP) recent moves are becoming noteworthy. Even on a massive down day in the market, where many stocks are plummeting, Union Pacific stock remains firm and slightly up. There is no breakout to report, and the stock is still far from capturing the top of the SIA matrix, but each day the market is down and UNP is up, it continues to build its relative strength. Given the recent gains in the airline sector, is it possible that the momentum could spill over into broader transports like trains and trucks.