Richard Russell alert? Followers of Dow Theory like to see industrials and transports moving together to confirm a trend. Prior to today's action the DJIA (DIA -1.2%) was down 2.3% YTD while the transports were up 2.3% - giving hope the broad market might be set to reverse course. Today's slump though, brings the transports into the red for the year.
Another transport ETF is the XTN.