Siderurgica Nacional (SID) Dips More Than Broader Markets: What You Should Know Posted byZacks Equity Research December 3, 2021 Leave a comment on Siderurgica Nacional (SID) Dips More Than Broader Markets: What You Should Know Siderurgica Nacional (SID) closed at $4.08 in the latest trading session, marking a -0.97% move from the prior day.