alanphillips/E+ via Getty Images The performance of Pacific Biosciences (NASDAQ:PACB) ("PacBio") is all too familiar to readers who've followed this stock for a long time, as once again the stock is trading below 2onfearsthatthecompanysimplywon′tbeabletostayinthegamelongenoughtobenefitfromfuturegrowthinlong−readsequencing(aswellasskepticismthatlong−readsequencingwillgrowenoughtosupporta1B+ revenue base). Down more than 80% since my last update, underperforming other s ...