The Best (And Worst) ETFs Of Last Week Amid Social Media's Collapse By: Benzinga via Benzinga May 03, 2015 at 18:09 PM EDT The rug was unceremoniously pulled out from under the bulls this past week as several key earnings misses and economic data surprises ... Read More >> Related Stocks: Alps Medical Breakthroughs ETF GX MSCI Greece ETF SPDR S&P 500 ETF Trust Twitter, Inc. Yelp Inc