MP Materials (MP) Falls -15.8% Over 30 Days Amid Rare Earth Sector Selloff

Key Takeaways

• MP Materials (MP) shares declined about 15.8% over the past 30 days, sliding from a $54.70 close on September 2 to roughly $46.08 by October 1, 2026.
• The pullback was largely sector-driven rather than company-specific: the VanEck Rare Earth and Strategic Metals ETF (REMX) and peers such as USA Rare Earth (USAR) and United States Antimony (UAMY) fell in tandem while the S&P 500 was roughly flat.
• Renewed U.S.–China diplomatic signals, including a September meeting between President Trump and President Xi, undercut the scarcity premium tied to Western rare earth producers.
• Company fundamentals stayed constructive: second-quarter 2026 revenue rose 89% year over year to $108.5 million, NdPr sales climbed 127%, and General Motors (GM) magnet shipments remain targeted for the fourth quarter.
• MP remains well below its 52-week high, reflecting a highly volatile year for the rare earths theme.

MP Materials (MP) Company Overview and Market Position

MP Materials Corp. is a rare earth mining and processing company and the largest rare earth producer in the Western Hemisphere. Its flagship asset is the Mountain Pass mine in San Bernardino County, California — the only scaled rare earth mining and processing operation in the United States. The company produces rare earth oxides and neodymium-praseodymium (NdPr), the materials used in high-performance permanent magnets, and is expanding into heavy rare earths such as dysprosium and terbium. It is also integrating downstream into magnet manufacturing through its Independence facility in Fort Worth, Texas, and the larger 10X facility under construction in Northlake, Texas. Backed by partnerships with the U.S. Department of Defense and Apple, MP is positioned as a strategic supplier in the effort to build a Western rare earth and magnet supply chain outside China.

MP Materials (MP) Stock Price Performance: Last 30 Days vs. Quarter

Over the last 30 days, MP Materials (MP) shares fell from a closing price of $54.70 on September 2 to approximately $46.08 on October 1, a decline of about 15.8%. The slide was especially steep relative to the late-August peak, when the stock traded above $60 before momentum faded. I also checked this using Tickeron’s AI Screener to see how the stock compares to others in the industry.

The trailing quarter tells a more volatile story. Shares began July near $54, dropped to a 52-week low near $38 by late July, then rebounded above $60 in late August before retreating again through September. On a net basis, the stock is down roughly 15% over the trailing three months, but the headline move understates the wide swings investors have absorbed along the way.

What Drove MP Stock Price in the Last 30 Days

The recent decline was primarily a rare earth sector selloff rather than a response to company-specific news. Over a similar window, the VanEck Rare Earth and Strategic Metals ETF fell about 17%, USA Rare Earth dropped around 23%, and United States Antimony slipped roughly 15%, while the S&P 500 was nearly unchanged. That breadth points to investors trimming exposure to the critical-minerals theme as a whole.

A key catalyst was renewed optimism around U.S.–China relations. The September meeting between President Donald Trump and President Xi Jinping raised the prospect of a more durable arrangement that could ease export-control tensions. Because domestic rare earth names trade partly on the scarcity created by Chinese control of the supply chain, any sign of a thaw reduces the premium investors assign to Western producers.

The selling occurred despite constructive company developments. MP signed a multi-year gadolinium oxide supply agreement with a U.S. aerospace and defense customer, delivered magnets to GM for in-vehicle qualification testing, and reiterated plans to begin commercial magnet shipments in the fourth quarter. In this context, the price move reflected sentiment and sector rotation more than a deterioration in MP's operating outlook.

What Drove MP Stock Performance Over the Last Quarter

The quarter's trajectory was shaped by alternating waves of sector-wide repricing. In July, rare earth equities corrected sharply as momentum unwound and profit-taking set in following China's expansion of its export-control list; MP declined roughly 26% that month. The pullback was reinforced by rising hedge-fund short interest in several U.S.-listed critical-minerals names.

August brought a rebound. MP's second-quarter results showed revenue up 89% year over year to $108.5 million, NdPr production up 41% to 840 metric tons, and NdPr sales up 127% to 1,006 metric tons, alongside progress on GM qualification and the 10X build-out. Sentiment briefly improved, lifting the stock back above $60.

September then faded that recovery as diplomatic headlines around U.S.–China talks and broader rotation out of the theme weighed on valuations. The result has been a stock that remains well below its 52-week high despite improving fundamentals, underscoring how much of MP's valuation is tied to geopolitical and policy sentiment rather than near-term financials alone.

MP Stock Forecast Drivers: What Investors Should Watch Next

Several factors are likely to shape MP's stock in the months ahead. Third-quarter 2026 results, expected in late October or November, will provide a fresh read on NdPr production, realized pricing, and price protection agreement income. The single most important company-specific milestone is the start of commercial magnet shipments to GM in the fourth quarter, which would mark MP's transition from a materials supplier to an integrated mine-to-magnet producer.

Investors should also monitor progress on the 10X facility in Texas, the commissioning of the heavy rare earth separation circuit, and any additional customer or offtake announcements. On the macro side, U.S.–China trade and export-control developments, NdPr pricing trends, and demand from electric vehicles, wind energy, defense, and robotics will continue to influence sentiment. While consensus analyst price targets remain well above recent trading levels, execution on the magnet ramp and the direction of geopolitical policy remain the key swing factors. From what I see, these elements deserve close attention in the coming weeks.

AI Tools in My Research Process

One tool I’ve found helpful for tracking sector moves like this is Tickeron’s AI Trend Prediction Engine. It lets me scan for patterns across peers and refine timing decisions alongside the fundamentals. In my experience, layering these AI insights with traditional analysis supports more informed positioning without replacing core research.

Disclaimer

The information on this webpage is provided for general informational and educational purposes only and is not intended as investment advice, a recommendation to purchase or sell any security, or an offer or solicitation related to investments. It does not consider your personal financial situation, goals, or risk profile, and all investing carries inherent risks, including the possibility of losing your entire investment. For more details, please review our full disclaimer.

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Contributor

Sergey Savastiouk|Expert

Sergey Savastiouk, Ph.D. has a degree in Applied Mathematics from Moscow University and has extensive experience as an entrepreneur, investor, manager, and mathematician. His professional expertise is in applied mathematics, mathematical modeling, system and pattern analysis, and software and hardware system integration. He has served as the CEO of several hi-tech start-up companies and nonprofit organizations, which has given him proven capabilities in business strategy for high-tech start-up companies, market assessment, company formation, team building, product development, marketing, and sales. He has published numerous articles in journals and magazines on related fields. As a retail investor, he spent 15 years developing his proprietary trading and quantitative algorithms (now Tickeron’s A.I.), which brought him significant returns in trading the stock market. His current work and goal in founding Tickeron is to bring professional, sophisticated stock market analysis capabilities to retail investors via an easy-to-use interface.

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