Century Aluminum is trading 4.25% down now at $39.77 amid broad market pressure from rising Treasury yields and oil prices, rather than a newly identified company-specific announcement.

  • U.S. equities are weakening as the 10-year Treasury yield rises above 5% and Brent crude trades above $107; Reuters said these pressures weighed on risk appetite ahead of central-bank meetings.
  • The decline follows a 5.70% drop on September 14, while aluminum is down only 0.23% on September 15, suggesting global risk-off positioning rather than an aluminum-price shock.