Collapse in MP, the minerals sector in general, and every high growth sector in the market is institutional derisking in the face of massive leverage ($1.4 trillion in margin loans), which has triggered an historic collapse in high beta stocks -- nothing to do with rare earth prices, particularly for MP which has guaranteed price floors.
So,the big players have taken a wrecking ball to minerals by shorting the sector to oblivion, but will have no problem riding the wave back up once the bottom is in...