us stock indexes opened lower on friday giving back some of thursdays gains as investors still assessed the health of the banking sector after first republic bank was rescued by a group of major us lenders the dow jones industrial average djia lost 138 points or 04 to 32130 the sp 500 spx was off 02 while the nasdaq composite comp declined by 01 on thursday a group of americas largest banks including jpmorgan citigroup bank of america and wells fargo agreed to plunk 30 billion of uninsured deposits into first republic bank shares of first republic opened 17 lower on friday after the bank suspended its dividend and disclosed higher borrowing costs eating into its valuation thursday after hours