Alcoa Corp (NYSE:AA) stock is in rally mode ahead of its first-quarter earnings report, which is due out after the market close on Wednesday, April 17. The security is up 5.1% at 36.98atlastcheck,afterboththeU.S.andBritainbannedtheChicagoMercantileExchange(CME)and LondonMetalExchange(LME)fromacceptingnewRussianaluminumandnickel.Whilethe38 region has capped price action this month, the 20-day moving average has been a solid source of support since early March, and could remerge ...