MP Materials (NYSE: MP) owns Mountain Pass in California, the only scaled rare earth mine and refinery in the United States, and it now makes finished magnets in Texas. That matters to robot investors because every humanoid joint motor needs neodymium-iron-boron (NdFeB) magnets, and China controls most of the world's supply. MP is not a Tesla supplier, but it is the main US company trying to make the magnet bottleneck smaller. This page is part of our Tesla Optimus stocks hub.
- Ticker: MP on the New York Stock Exchange.
- Q3 2026: revenue $147.7M (+176%), adjusted EBITDA $41.1M, GAAP net loss $20.7M.
- Backstops: DoD $110/kg NdPr price floor and 10-year magnet offtake (July 2025).
- Magnets: Fort Worth plant running; GM deliveries with revenue start Q4 2026.
- Optimus link: indirect only; no Tesla contract reported.
MP Materials at a Glance
| Item | Detail |
|---|---|
| Ticker / exchange | MP · NYSE |
| Headquarters | Las Vegas, Nevada |
| Mine and refinery | Mountain Pass, California |
| Magnet plants | Independence (Fort Worth, TX), running; 10X campus (Northlake, TX), planned |
| Largest shareholder | US Department of Defense (via 2025 preferred stock and warrants) |
| Cash and short-term investments | $1.34B (Sep 30, 2026) |
| Long-term debt | $936M (Sep 30, 2026) |
| Latest results | Q3 2026, reported Nov 5, 2026 |
Balance sheet figures from MP's Q3 2026 release. We could not verify a post-earnings closing price; MP is volatile, so check a live quote.
Why Humanoid Robots Need Rare Earth Magnets
A humanoid like Optimus uses dozens of electric actuators, and the compact high-torque motors inside them rely on NdFeB permanent magnets, often with dysprosium or terbium added for heat resistance. Our Optimus suppliers guide estimates several kilograms of magnet material per robot. When China put seven medium and heavy rare earths and related magnets under export licensing in April 2025, Elon Musk said Optimus production was affected and Tesla was working to secure a license, as The Register reported. A broader set of Chinese controls announced in October 2025 was suspended for one year in November 2025, a pause scheduled to expire on November 10, 2026, according to Mining Technology; the April 2025 licensing rules remain in force. Watch for any extension or reimposition. That is the risk MP is positioned against.
Scale check: if a humanoid needs roughly 3 to 4 kg of NdFeB, 10,000 tonnes of US magnet capacity would cover millions of robots in theory. In practice cars, defense, wind and electronics will take most of it, so robots compete for supply. These are our estimates.
Q3 2026 Results: Materials Carry the Quarter
| Metric | Q3 2026 | Q3 2025 |
|---|---|---|
| Revenue | $147.7M | $53.6M |
| NdPr oxide produced | 1,018 t | 721 t |
| NdPr sold | 1,020 t | 525 t |
| Adjusted EBITDA | $41.1M | -$12.6M |
| GAAP net loss | -$20.7M | -$41.8M |
| Magnetics segment revenue | $18.6M | $21.9M |
Source: MP Materials, Nov 5, 2026. NdPr revenue divided by volume implies roughly $99 per kilogram, our calculation, up from about $59 a year earlier. Two caveats: $31.6 million came from a one-time sale of SEG+ heavy rare earth concentrate to a US aerospace and defense customer, and Magnetics revenue fell because the plant switched from selling precursor materials to making magnets, with $14.2 million of start-up costs in the quarter.
The Pentagon Deal That Changed the Story
- Apr 2025China adds rare earth magnets to export licensing; MP stops shipping concentrate to China.
- Jul 10, 2025DoD agreement: $400M preferred equity, $110/kg NdPr floor for 10 years, 100% offtake of 10X magnets for 10 years, $150M heavy rare earth loan (MP release).
- Jul 15, 2025Apple commits $500M to recycled US magnets from Fort Worth.
- Dec 2025Commercial NdFeB magnet manufacturing starts at Independence.
- Feb 2026Northlake, Texas chosen for the roughly $1.25B 10X campus (MP release).
- Q4 2026GM magnet qualification done; revenue deliveries begin.
The price floor works through price protection payments: when market NdPr prices sit below $110 per kilogram, the government pays the difference. MP booked $8.1 million of this income in Q3 and $68.0 million over nine months, so the floor is already a real part of earnings. It also caps the downside that wrecked the stock in 2023 and 2024, when Chinese prices fell.
Apple, GM and the Magnet Ramp
General Motors was MP's first magnet customer and has now qualified Fort Worth magnets for its vehicles. Apple's deal adds recycled-feedstock magnets from 2027. The 10X campus, with output reserved for the defense offtake and commercial buyers, is where the volume that could one day reach robot makers would come from. Commentary after Q3 pointed out that the big magnet earnings payoff sits around 2028, so near-term numbers still depend on mining and refining.
Is MP Materials an Optimus Play?
Only indirectly. No MP-Tesla supply deal has been reported, and Tesla does not disclose its magnet sources. Chinese magnet makers such as Zhongke Sanhuan are the more likely current suppliers to the actuator makers in the Optimus chain, like Sanhua Intelligent Controls. The case for MP is strategic: if US policy or Chinese licensing makes China-sourced magnets harder to use in American-built robots, a domestic magnet maker with government backing becomes valuable to every humanoid builder, Tesla included. That is a scenario, not a contract.
Not confirmed: social media claims that MP will supply Optimus magnets are not backed by any company announcement.
What You Are Paying For
MP is priced on its future magnet business more than on current profit. Q3 adjusted EBITDA of $41.1 million annualizes to about $165 million, our estimate, against a market value in the multi-billion-dollar range. Bulls see a government-protected monopoly in US rare earths with a guaranteed buyer for 10X output. Bears note GAAP losses, heavy capex for 10X and the risk that a China trade deal cools the scarcity premium.
How to Buy MP Materials Stock
- US investors: any brokerage can buy MP on the NYSE.
- European investors: MP is available on most platforms with US market access; some also list it on German exchanges.
- ETFs: the VanEck Rare Earth and Strategic Metals ETF (REMX) holds MP alongside Chinese and Australian producers.
For other ways to play humanoid robots, see our humanoid robot stocks guide. This article is for information only and is not investment advice.
Risks
- Execution: magnet making is new for MP; yields, costs and qualification timelines can slip.
- Policy: the business model leans on US government support that could change.
- China pricing and trade: a durable easing of export controls would cut the scarcity premium.
- One-offs: Q3 included a $31.6 million one-time concentrate sale.
- Dilution and debt: 10X capex is large, and the DoD holds warrants.
FAQ: MP Materials Stock
Does MP Materials supply Tesla Optimus?
No supply agreement between MP Materials and Tesla has been reported. MP's announced magnet customers are General Motors and Apple, and its new 10X plant output is contracted to the US Department of Defense and commercial buyers. MP matters to Optimus investors because humanoid actuators use NdFeB magnets that today come mostly from China.
What was the MP Materials Department of Defense deal?
Announced on July 10, 2025, the deal made the Department of Defense MP's largest shareholder through a $400 million preferred stock investment, set a 10-year price floor of $110 per kilogram for NdPr oxide, and committed the government to buy all magnets from a new 10X plant for ten years. It also included a $150 million loan for heavy rare earth separation.
How did MP Materials do in Q3 2026?
Revenue rose 176% to $147.7 million, NdPr oxide production rose 41% to 1,018 metric tons and adjusted EBITDA was $41.1 million, versus a loss a year earlier. The company still posted a GAAP net loss of $20.7 million, partly because of $14.2 million in magnet plant start-up costs.
What is the Apple deal with MP Materials?
In July 2025 Apple committed $500 million to buy US-made rare earth magnets produced from recycled material at MP's Fort Worth facility, with shipments planned to start in 2027, and to fund a recycling line at Mountain Pass.
Where is MP Materials making magnets?
MP makes NdFeB magnets at its Independence facility in Fort Worth, Texas, which began commercial magnet manufacturing in December 2025. A much larger 10X campus is planned in Northlake, Texas, with a roughly $1.25 billion investment announced in February 2026.
The Bottom Line
MP Materials is the most direct listed US bet on breaking China's grip on rare earth magnets, with a Pentagon price floor, Apple and GM as customers and revenue up 176% in Q3 2026. For Optimus investors it is a supply-security story, not a supplier story: no Tesla deal exists, and the large magnet volumes arrive with 10X around 2028. Owners should expect policy-driven volatility.
Sources: MP Materials Q3 2026 release (Nov 5, 2026), MP Materials DoD release (Jul 10, 2025), MP and Apple release via Business Wire (Jul 15, 2025), MP Northlake release (Feb 2026), The Register (Apr 23, 2025), BNN Bloomberg (Nov 7, 2025), Mining Technology (Apr 27, 2026). Not investment advice. Last fact-check: November 10, 2026.
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