Why did ON Semiconductor stock plunge 21% after its $7B Synaptics acquisition? Why did ON Semiconductor stock plunge 21% after its $7B Synaptics acquisition? Stock market AI Sentiment: 25/100 Bearish This score is generated through AI-driven analysis of the article's content. Author Vatsala Gaur Vatsala G. Jun 26, 2026, 10:44 AM Generate Trading Ideas Generating powered by ON Semiconductor (ON) Buy ON. The 19% drop prices in worst-case integration and "no near-term earnings†fears, but the deal is all-stoc ...