Materialise ($MTLS) Falls -23% in 30 Days After Q3 Earnings Reaction Materialise (MTLS) shares declined roughly 23% over the trailing 30 days, with the move concentrated after the company's third-quarter 2026 earnings release on October 28. Third-quarter revenue rose 2.1% year over year to €67.67 million but landed slightly below consensus, while adjusted EBIT and adjusted EBITDA both declined from the prior-year period.