BALTIMORE ( Stockpickr) -- The S&P 500 refuses to back down from its rally after posting gains in eight of the last 10 trading days. That's a colossal run, particularly given the bearish sentiment that some traders were feeling following the enormous selloff in the first month of 2010. But with the market edging precariously close to a significant resistance level at 1150, can stocks stand a chance going into next week?To find out, let's look once again at how some of Wall Street's biggest names are trading using technical analysis. Technical analysis uses a stock's price movements to determine where shares are headed in the future. Technical charts are used every day by proprietary trading floors, the street's biggest financial firms and individual investors to get an edge on the market. And according to some sources, skilled technical traders can bank gains as much as 90% of the time. Every week, Stockpickr analyzes the technicals for some of Wall Street's highest-volume stocks and takes a look at how to trade them. Here's this week's look at how some of the biggest names on Wall Street are trading technically.