Click to get this free report SPDR-SP 500 TR (SPY): ETF Research Reports NASDAQ-100 SHRS (QQQ): ETF Research Reports SPDR-DJ IND AVG (DIA): ETF Research Reports To read this article on Zacks.com click here. Greece notwithstanding, stocks have had a good run in the last few sessions and today's tentative behavior is likely due to the absence of a fresh catalyst other than developments in Europe. The European Central Bank's QE program should help with the deflation issue and also help the export-centric German economy by pushing the Euro-Dollar exchange rate towards parity.