Edwards Lifesciences Corporation (NYSE: EW) shares traded higher on Wednesday. The stock surged despite any company-specific news. What To Know:Edwards Lifesciences stock rose over 8% on Wednesday, although there were no major catalysts behind the move. The stock experienced above-average volume of 9.36 million shares, compared to its average volume of 4.18 million shares. Previously, shares had rallied from the end of October to mid-December, at which point the stock trended lower into the end of January. Over the past week however, shares have pushed higher, soaring above the December high. …