Synopsys Stock (SNPS) After Hours on Dec. 15, 2025: What Happened After the Close and What to Watch Before Tuesday’s Open
Synopsys, Inc. (NASDAQ: SNPS) ended Monday’s regular session (December 15, 2025) slightly higher—but traded lower in after-hours dealing as investors weighed a volatile day in tech, fresh commentary around estimates and ratings, and a new wave of securities-law notices tied to an ongoing class-action process. Below is what’s driving attention on Synopsys stock after the bell and what market participants may want on their checklist before the U.S. stock market opens Tuesday, December 16, 2025. Synopsys stock price after the bell: the key numbers investors are watching Regular session (Dec. 15): After-hours (as of ~7:52 p.m. ET): The main takeaway: