Ero Copper is trading 6.5% up now at $37.01 in pre-market trading after closing at $34.76 on September 2, 2026, apparently rebounding after recent declines, though the precise catalyst remains unclear.
- No new company-specific announcement or earnings release was identified overnight.
- Copper prices rose 0.31% overnight, offering modest sector support; broader U.S. futures were only slightly higher.