Duolingo Stock Plummets 20%. Why a Strategy Shake-Up Is Spooking Wall Street.

Duolingo Stock Falls 20% After Earnings. Why Wall Street Is Spooked. - Barron'sSkip to Main ContentThis copy is for your personal, non-commercial use only. Distribution and use of this material are governed by our Subscriber Agreement and by copyright law. For non-personal use or to order multiple copies, please contact Dow Jones Reprints at 1-800-843-0008 or visit www.djreprints.com.# Duolingo Stock Plummets 20%. Why a Strategy Shake-Up Is Spooking Wall Street.By [Mackenzie Tatananni]and [George Glover]Sha ...