Ero Copper is trading at $35.79, down 4.02%, apparently amid profit-taking after its September 22 rally. - The decline reverses part of the 7.46% gain recorded on September 22; no new company-specific negative announcement was identified. - Recent coverage highlighted Michael Burry’s disclosed position and the proposed US$1.3 billion Furnas copper-gold project with Vale Base Metals. - Copper prices continued rising on September 22, suggesting the decline reflects trading flows rather than weaker copper fundamentals.