German DAX index partly erased previous session's gains on Tuesday as negative sentiment regarding Greece long term future spread among investors. Financials contributed to the negative side of index with Deutsche Bank AG dropping 2.6% and Commerzbank AG giving up 1.3%. Deutsche Luft AG fell 2.7% amid Frankfurt strike. ThyssenKrupp AG lost 2.6% after UBS downgraded its stock from neutral to sell. At the moment of writing DAX 30 index trades 0.65% or 45.43 points down at 6,902.59.