XETRA:CBK.DE 2 December 2025

June 26, 2026, 5:41 PM EDT. Shares of analog chipmaker onsemi fell 21.8% following its announcement to acquire Synaptics in a $7 billion all-stock deal. The transaction will dilute existing shareholders as Synaptics investors will hold about 12% of the combined company. onsemi projects $200 million in annual cost savings but provided limited guidance on revenue or manufacturing benefits, causing investor caution. Despite reaffirming its Q2 outlook, uncertainty around the acquisition weighed on the stock. onsemi shares are highly volatile, having experienced 28 moves greater than 5% in the past year. The stock remains down 30.7% from its 52-week high, even as it has gained 63.8% year-to-date.