What triggered the sharp move in IPG Photonics (IPGP)? IPG Photonics (IPGP) reported Q1 2026 sales of US$265.5 million with net income of US$1.58 million, and issued Q2 revenue guidance of US$260 million to US$290 million. However, margin pressure and cautious profit commentary drove a sharp share price sell off. The stock reaction came even though reported revenue topped expectations and industrial, battery manufacturing, and medical applications supported demand. Investors focused on tariff...