Analysts during a conference call with Macrogenics Inc. characterized themselves as "dead wrong" and called the company's phase III victory "especially sweet" with margetuximab (marge) that was "written off by so many" in HER2-positive metastatic breast cancer. The news sent shares (NASDAQ:MGNX) up 130.4 percent, or $14.49, to close Wednesday at $25.60.