Onto Innovation is trading 10% down now at $315.92 after a broad semiconductor selloff driven by surging Treasury yields and worsening U.S.-Iran tensions.
- The 30-year Treasury yield hit its highest since 2007; Reuters said elevated yields reduced the value of future profits, pressuring tech shares and prompting AI and chip-equipment profit-taking.
- The Philadelphia Semiconductor Index is down 3.7% and SOXX 4.71%, indicating a sector-driven decline rather than a new Onto-specific announcement.
- After sharp earnings-related gains, it closed at $351.16 on August 17.