Edwards Lifesciences Corp. added more than $20 billion so far this year to its market cap to exceed a $50 billion valuation. Executives worked to convince Wall Street that 2020 and beyond are lining up to be additional banner years for the cardiovascular med-tech giant at the company’s annual investor meeting. While the newly introduced guidance for next year from Edwards was largely in line or a bit better than analysts had anticipated, its share price remained relatively flat on the event.