Stocks continued to hold small gains late Friday and were poised to end mixed for the week. The Nasdaq rose 0.3%, but its six-week winning streak is in danger. The tech index is on pace for a weekly loss of around 0.2%. The S&P edged up 0.2% and was on track for a seventh straight weekly gain. That would be its longest win streak since an eight-week run in late 2013.