Remember rare earth stocks? Those companies that were all the rage a few years back when everyone was worried about China controlling the supply of critical minerals? Well, they're back in the spotlight Monday, with USA Rare Earth Inc. (USAR) and MP Materials Corp. (MP) both climbing on a combination of a transformative deal and some fresh Wall Street love.

It's one of those days where two separate bullish catalysts collide to create real momentum. USA Rare Earth kicked things off by announcing it's buying Brazilian miner Serra Verde Group for $2.8 billion. That's not pocket change — it's $300 million in cash plus 126.85 million newly issued USAR shares.

Why does this matter? Serra Verde owns the Pela Ema mine, which USA Rare Earth CEO Barbara Humpton called a "one-of-a-kind asset" during a CNBC appearance Monday. Here's the key detail: it's apparently the only scaled producer outside Asia of all four magnetic rare earths — neodymium, praseodymium, dysprosium and terbium. These are the elements that make modern magnets work in everything from electric vehicles to wind turbines.

Humpton framed the deal in geopolitical terms, telling CNBC that "the world has become too dependent on a single source and it's high time to break that dependency." Translation: China currently dominates this market, and everyone from automakers to defense contractors would love to have alternatives.

The deal comes with some interesting financial engineering. Serra Verde already has a 15-year, 100% offtake agreement with what's described as a U.S. government-backed special purpose vehicle. Even better for USA Rare Earth, that agreement includes guaranteed price floors on all four of those magnetic elements. That's the kind of revenue visibility that makes bankers smile.

Management is guiding to $550 million to $650 million of run-rate EBITDA from Serra Verde by the end of 2027, with projections of roughly $1.8 billion in combined EBITDA by 2030. Those are big numbers for a company that closed Friday at $19.95 per share.

While all this was happening, Wedbush analyst Sam Brandeis decided to join the party. He initiated coverage on both USAR and MP Materials with Outperform ratings Monday, which helped extend the sector rally beyond just the M&A news.

For USA Rare Earth, Wedbush slapped a $29 price target (that's before the Serra Verde news was fully digested), implying roughly 45% upside from Friday's close. Brandeis cited the company's "heavy rare earth mine-to-magnet platform" anchored by what he called the largest HREE deposit.

For MP Materials, Wedbush set a $90 target and branded the company "America's designated rare earth national champion." The firm highlighted MP's vertical integration across the Mountain Pass mine and its Independence magnet facility in Fort Worth as what it called "the most underappreciated dimension of the bull case." The pitch here is that Mountain Pass stands as the lowest-cost producer of rare earth concentrate outside China.

So you've got two different stories here. USA Rare Earth is making a big, transformative acquisition to expand its footprint and secure supply outside Asia. MP Materials is the established player with what analysts see as an underappreciated integrated business model. Both are benefiting from renewed attention to a sector that had fallen off many investors' radar screens.

What's interesting is how these moves fit into broader trends. The push for electric vehicles, renewable energy, and secure supply chains for critical minerals hasn't gone away — it's just taken a back seat to other market narratives at times. When a major acquisition and bullish analyst coverage happen on the same day, it reminds everyone why these stocks mattered in the first place.

The rare earth trade isn't just about digging rocks out of the ground. It's about geopolitics, industrial policy, and the materials that power the energy transition. When companies like USA Rare Earth make billion-dollar bets to diversify supply away from China, and when analysts start talking about "national champions" again, you know this sector is back in play.