Dow Jones Industrial Average index climbed higher on Wednesday lifted by Alcoa Inc. Blue chip index added 0.70% or 89.46 points and closed at 12,805.3. Alcoa, the biggest US aluminium manufacturer posted an unpredicted profit for the 1st quarter as aluminium orders surged. Instead of expected loss of USD 0.04 a share, Alcoa posted a gain equal USD 0.09 a share. Financials also contributed positively to the index with Bank of America soaring 3.8% and JP Morgan Chase advancing 2.4%.