 SmileDirectClub Incs NASDAQ:SDC stock plummeted after the company reported its third-quarter revenue at 137.68 million, down 18.3 year-on-year, missing the consensus estimate of 181.90 million. BofA on SmileDirectClub: Analyst Michael Ryskin of BofA Securities maintained an Underperform rating, while reducing the price target from 6 to 5. 