German DAX index extended gains on Tuesday lifted by financials and heavyweight companies whose stocks were upgraded. Commerzbank AG gained 1.8% and Deutsche Bank AG advanced 1.5%. Henkel AG added 1% after Morgan Stanley raised the shares from underweight to overweight, citing feasible EPS growth. Deutsche Lufthansa AG edged up 3.4% after J.P. Morgan Cazenove lifted the stock from neutral to overweight. At the moment of writing DAX 30 trades 0.66% or 46.85 points higher at 7,125.77.