With earnings season once again upon us, investors should be eyeing stocks that are setting up in bases ahead of their reports. We use Xilinx to show how the strategy works. Then we review three notable stocks that could be buyable if we see breakaway gaps: iRobot, Mercury Systems and Amazon.  Plus, we have a sponsored interview with Alliance Bernstein, hosted by Randy Watts from William O'Neil, about macroeconomic factors impacting late-cycle investing.  For the video version, show notes and charts, go to investors.com/podcast.