Shares of NioCorp (NB) and other U.S. rare earth miners continue to gain momentum as the Trump administration doubles down on building a domestic supply chain independent from China. Analysts remain bullish, with some rare earth stocks trading well below their price targets as government support intensifies. The sector jumped after Trump and Australian Prime Minister Anthony Albanese signed an agreement to invest in joint ventures for critical minerals and rare earths. Treasury Secretary Scott Bessent ann ...