Both retail sales and inflation in the United States came in hotter than expected for August, suggesting resilience in the economy and persistent price pressures make a case for more Fed rate hikes. China, the engine of global growth, is caught in deep trouble, given falling consumer prices, a deepening real estate crisis, slumping exports and a record-high youth unemployment rate. First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index Fund has accumulated $1 million in its asset base and trades in a volume of 72,000 shares a day on average.