稀有金属股票周五飙升：MP Materials涨8%，USA Rare Earth涨9%，NioCorp涨3%。涨势背后有何原因？
· finance.yahoo.com
美国稀有金属股票周五大幅上涨，目前尚未确认具体催化剂，但交易员纷纷涌入的原因揭示了这一波动性板块的实际运作机制。
Quick Read
MP Materials surged 8% and USA Rare Earth jumped 9% Friday on trader speculation about U.S. tariff support, with no confirmed catalyst.
Rare earth ...