The biggest drag on the Dow Jones today was Caterpillar Inc. ( CAT ), which slid more than 2.2%. This Indicator Says Yes U.S. Dollar Drops as Global Stock Markets Decline Oil Price Forecast Shows Oil Headed for a Rebound Follow us on Twitter:@moneymorning . ECB head Mario Draghi said the economic growth worsened in August and new risks are plaguing the European economy, including lower commodity prices, a stronger euro, and a negative outlook on inflation.