GrafTech International is trading 10.36% up at $10.33, although no new company-specific announcement or clearly attributable catalyst was identified for September 22.
- Shares rose 13.87% to $9.36 on September 21.
- The latest material development was the September 8 announcement of a minimum 30% graphite-electrode price increase.
- That announcement previously supported investor enthusiasm but does not clearly explain today’s move.