SAP Stock Drops 15% After Earnings. Europe's Tech Darling Can't Play With the Big Boys. - 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.# SAP Stock Drops 15% After Earnings. Europe's Tech Darling Can't Play With the Big Boys.By [George Glover ...