Bayer Stock Rockets on U.S. Roundup Breakthrough – Is the 13% Rally the Start of a Trend?
Bayer’s share price is exploding today. On 2 December 2025, the German blue chip (ISIN DE000BAY0017, ticker BAYN) is trading around €34–35 on Xetra, up roughly 13% intraday and at a fresh year high.FinanzNachrichten.de+1 The trigger: a major twist in the U.S. Roundup™ glyphosate litigation – and a renewed wave of analyst upgrades and fresh pipeline news that could reshape the investment story. Below is a full rundown of today’s news, forecasts and analyses around Bayer stock, and what they may mean for investors. 1. Why Bayer Stock Is Surging Today U.S. government backs Bayer in Roundup case On 1 December 2025, the U.S. Solicitor General filed a brief supporting Bayer’s