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Getting technical: Bears gaining the SPY edge under a web of anchored VWAP resistance

Another tough day in the markets, with stocks giving up early gains into the close. Yahoo Finance's Jen Rogers and Myles Udland talk to Brian Shannon, CMT and founder of www.alphatrends.net, who breaks down the latest price action in the SPDR S&P 500 ETF (SPY). Anchors away!