It is tradition in Germany's stock exchange that traders dress up in carnival costumes for Shrove Tuesday. But that's about the only thing lightening the mood on the trading floor these days. Indeed, one day after the DAX dipped below 4,000 points for the first time since 2004, this trader's costume seems appropriate. The DAX showed further signs of bearishness on Tuesday as it dropped to almost 3,800 points before recovering.