Constellium is trading at $24.38, +4.14%, ahead of its scheduled third-quarter results before the market opens October 28; earnings anticipation is plausible context, not confirmed direct causation. - No company announcement explaining the October 27 move was found; analysts expect about $0.74 per share and $2.53 billion in revenue. - Broader indexes were higher during the session: the S&P 500 rose 0.68% and Nasdaq rose 1.22%. - Aluminum prices were little changed, limiting evidence of a clear commodity catalyst.