Earnings season has been a primarily positive period so far, with many companies enjoying post-earnings positivity.And to the likes of investors, many companies, including Netflix (NFLX) , Eaton (ETN) , and Arista Networks (ANET) , have enjoyed margin expansion. Let’s take a closer look at how each currently stacks up.NetflixConcerning headline figures in its latest print, Netflix posted a 17% beat relative to the Zacks Consensus EPS estimate and posted sales modestly ahead of the consensus, with both items ...