Charting a tenuous technical backdrop ahead of the Fed By: MarketWatch September 15, 2015 at 11:55 AM EDT The S&P 500 and the Dow industrials have established well-defined resistance ahead of the Federal Reserve’s policy decision due out this week. Read More >> Related Stocks: Ayala Pharmaceuticals Inc CDW Corp Clovis Oncology Inc KLA-Tencor Corp Nasdaq Biotechnology Ishares ETF Vonage Holdings