GrafTech International is trading 5.19% lower at $10.77, following an unusually sharp run-up; no fresh company-specific announcement was identified for September 24, 2026. - Shares gained 13.87% on September 21 and 19.76% on September 22, making profit-taking and elevated volatility the most plausible immediate backdrop. - The September 8 announcement of a minimum 30% electrode-price increase remains supportive but does not explain today’s decline.