Dow Jones Industrial Average index closed almost unchanged on Friday with sector returns making relatively tiny movements. Blue chip index slipped 0.01% or 1.74 points to 12,982.95. The main gainer was American Express which added 1.3% though the company reported FDIC is going to take measures to fight late fees on some charge cards. Hewlett Packard prolonged its downward momentum pressed by weaker than expected 1st quarter earnings report issued last week. Bank of America was the main negative contributor to the Dow index, tumbling 1.8%.