$CLF 今日上涨9.7% — 是什么推动了它？

Seems like they had some positive news regarding their iron ore production estimates for the next quarter. Could be that, or just general market optimism. Any other thoughts?

It's likely the news about Cleveland-Cliffs' new supply agreement with Honda. That's a solid win for them.

Could be related to the steel price hike announcements from Nucor and Cleveland-Cliffs themselves. Positive for their margins.

It's a strong move, but daily fluctuations on steel stocks can be pretty volatile. I'd want to see if this holds up for a few more sessions or if it's just a short-term blip on higher volume.

Seems like the Senate committee approval for the China competition bill is the main driver. More domestic steel demand is good for CLF.