In this article, we will discuss: 13 Best Magnesium Stocks to Invest in Now.

Magnesium is essential to the aerospace, defense, and steel industries, among others, making it a significant component of U.S. national security. It is therefore listed on the 2022 Critical Minerals List by the U.S. Geological Survey.

A significant step toward expanding domestic magnesium manufacturing has been taken by the U.S. technology business Magrathea with the opening of its next-generation magnesium chloride electrolyzer at its pilot facility in Oakland, California. The pilot can produce 4,000 pounds a year, and by 2027, it aims to increase capacity to 2 million pounds, which would be sufficient for operating thousands of Black Hawk helicopters.

Alex Grant, the CEO, stressed the initiative’s urgency by stating that:

“Magnesium is one of the most important critical materials, but NATO countries face a dire shortage of non-China supply.”

Currently, Russia and China account for over 90% of the world’s primary magnesium production, leaving NATO countries vulnerable. Using seawater and renewable energy, Magrathea’s approach produces zero kilograms of CO₂ emissions per kilogram of magnesium, whereas the conventional Chinese methods produce 40 kilograms. The company has signed contracts with over 25 businesses, including 10 defense partners, Cargill, and a major automobile company, proving considerable commercial traction. The U.S. Department of Defense supports it, investors connected to Tesla, and others.

With that said, here are the 13 Best Magnesium Stocks to Invest in Now.

Our Methodology

We sifted through online rankings to form an initial list of the 13 Best Magnesium Stocks to Invest in Now. From the resultant dataset, we chose 13 stocks with the highest number of hedge fund investors, using Insider Monkey’s database of 1000 hedge funds in Q1 2025 to gauge hedge fund sentiment for stocks. We have used the stock’s market cap as of August 14 as a tie-breaker in case two or more stocks have the same number of hedge funds invested.

Why are we interested in the stocks that hedge funds pile into? The reason is simple: our research has shown that we can outperform the market by imitating the top stock picks of the best hedge funds. Our quarterly newsletter’s strategy selects 14 small-cap and large-cap stocks every quarter and has returned 373.4% since May 2014, beating its benchmark by 218 percentage points (see more details here).

13. ICL Group Ltd (NYSE:ICL) 

Number of Hedge Fund Holders: 12

Market Cap as of August 17: $7.98 billion

Evogene Ltd. announced the successful sale of its ag-biologicals subsidiary, Lavie Bio Ltd., to ICL Group Ltd (NYSE:ICL). The acquisition, which was first revealed on April 21, 2025, comprises Lavie Bio’s patented Biology Driven Design technology platform, microbial bank, pipeline of advanced development programs, and current commercial products, as well as the transfer of core individuals to ICL Group Ltd (NYSE:ICL). Evogene also sold off its MicroBoost AI for AG platform, a computational tool that speeds up the creation of microbial products in agriculture. Lavie Bio’s current commercial agreements and partnerships are unaffected by the transaction and continue to provide benefits to its shareholders.

CEO Ofer Haviv underlined the action as a strategic turning point that would multiply the company’s global reach and promote the growth of sustainable agriculture. Dr. Elinor Erez, VP R&D at ICL Group Ltd (NYSE:ICL), noted that bringing together Lavie Bio with ICL Group Ltd (NYSE:ICL)’s R&D, sales network, and agronomy teams boosts ICL Group Ltd (NYSE:ICL)’s innovation pipeline, cementing the company’s position in the global ag-biologicals market and promoting sustainable solutions at scale. It is one of the Best Magnesium Stocks.

12. POSCO Holdings Inc. (NYSE:PKX)

Number of Hedge Fund Holders: 12

Market Cap as of August 17: $16.73 billion

Lithium South Development Corporation declared that it would sell its Sophia 1-3 concessions, Hydra X and XI concessions, and Hombre Muerto North Lithium Project for a maximum cash price of US$62 million. The buyer is POSCO Argentina S.A.U., the Argentine division of POSCO Holdings Inc. (NYSE:PKX), and the deal was completed on July 22, 2025, through a Letter of Intent. It is an arms-length sale with no finder’s fee. The Sal de Oro lithium project in the Hombre Muerto Salar. It is run by POSCO Argentina and POSCO Holdings Inc. (NYSE:PKX), a publicly traded global leader in steel and battery materials, with its headquarters located in Pohang, South Korea.

The purchase brings Lithium South’s lithium concessions under POSCO Argentina, allowing the business to expand strategically in the Hombre Muerto region while also monetizing its holdings. This action supports POSCO Holdings Inc. (NYSE:PKX)’s continued development of lithium resources to support its steel and battery material businesses. It is among the Best Magnesium Stocks.

11. Intrepid Potash, Inc. (NYSE:IPI) 

Number of Hedge Fund Holders: 15

Market Cap as of August 17: $349.31 million

Intrepid Potash, Inc. (NYSE:IPI) released solid second-quarter 2025 results, with overall revenue of $71.5 million and net income of $3.3 million, or $0.25 per diluted share. Adjusted EBITDA came to $16.4 million, over 75% more than Q2 2024, and adjusted net income hit $6.0 million ($0.45 per diluted share). The business ended the quarter in a strong financial position after investing $4.1 million in capital expenditures and generating $39.9 million in cash flow from operations. CEO Kevin Crutchfield credited the outstanding performance to strong unit economics, consistent demand for Trio® and potash, and favorable potash market fundamentals, all of which increased gross margins in both businesses.

The business upheld strong pricing and sales figures, which strengthened its operational performance. Intrepid Potash, Inc. (NYSE:IPI) is confident in maintaining profitability and cash creation for the rest of 2025, as shown by its sustained focus on successful project execution and expectation of ongoing pricing support in the potash market. It is ranked eleventh on the list of the Best Magnesium Stocks.

10. Kaiser Aluminum Corporation (NASDAQ:KALU)

Number of Hedge Fund Holders: 15

Market Cap as of August 17: $1.21 billion 

Kaiser Aluminum Corporation (NASDAQ:KALU) announced a solid second quarter of 2025, up 1% from the second quarter of 2024 with net sales of $823 million and conversion revenue of $374 million. Adjusted net income was $20 million, or $1.21 per diluted share, compared to $23 million, or $1.41 per diluted share, under GAAP. Adjusted EBITDA totaled $68 million, with an 18.1% margin, pointing to sustained success in the aerospace, high-strength, packaging, and automotive extrusion segments. All segments reported a surge in realized prices, and shipments reached 288.4 million pounds. Cash flow provided $22 million for interest, $26 million for stockholder returns, and $82 million for capital projects.

The total amount of liquidity as of June 30, 2025, was $538 million. Kaiser Aluminum Corporation (NASDAQ:KALU) CEO Keith A. Harvey raised the company’s full-year 2025 adjusted EBITDA estimate, forecasting a 10%-15% increase primarily due to strong operational fundamentals, favorable metal pricing, and ongoing strategic expansion investments. It is among the Best Magnesium Stocks.

9. Luxfer Holdings PLC (NYSE:LXFR)

Number of Hedge Fund Holders: 16

Luxfer Holdings PLC (NYSE:LXFR) reported an impressive second quarter of 2025, with adjusted net sales rising 5.8% to $97.1 million and GAAP net sales of $104.0 million, up 4.3% from $99.7 million in the same period last year. Adjusted gross profit rose 13.2% to $23.2 million, while gross profit jumped 9.1% to $24.0 million. Adjusted gross margins improved by 160 basis points to 23.9%. The company reported GAAP diluted EPS of $0.18 and GAAP net income of $5.0 million, compared to a $0.4 million loss in Q2 2024. Adjusted diluted EPS increased by 25% to $0.30, while adjusted EBITDA improved by 14.8% to $14.0 million. It is one of the  Best Magnesium Stocks.

Growth was fueled by strong demand in the aerospace and defense industries, as well as functional improvements like the sale of Graphic Arts and a project to relocate gas cylinders.

Global industrial firm Luxfer Holdings PLC (NYSE:LXFR) is developing specialized materials engineering applications. Its high-performance materials, components, and high-pressure gas containment systems find use in defense and emergency response, clean energy, healthcare, transportation, and specialised industrial applications.

8. Materion Corporation (NYSE:MTRN)

Number of Hedge Fund Holders: 22

Materion Corporation (NYSE:MTRN)’s price objective was lifted to $117 from $115 on August 13 by KeyBanc, retaining an Overweight rating.

According to KeyBanc, the improvement provides strategic flexibility for the company’s expansion and reflects possible benefits from government investment targeted at increasing beryllium production for defense and nuclear uses.

Materion Corporation (NYSE:MTRN) creates precision filters, optical coatings, beryllium and beryllium composites, powders, precious and non-precious metals, inorganic compounds, and specialized manufactured alloys. The business is divided into four reportable segments: Precision Optics, Electronic Materials, Performance Materials, and Others. Its beryllium capabilities are essential to the nuclear and defense industries, supporting KeyBanc’s belief that government funding could boost production capacity and open up new revenue streams. It is ranked eighth on the list of the  Best Magnesium Stocks.

7. Compass Minerals International, Inc. (NYSE:CMP) 

Number of Hedge Fund Holders: 26

Compass Minerals International, Inc. (NYSE:CMP) reported $214.6 million in fiscal Q3 2025, up from $202.9 million in the same period last year.

Adjusted EBITDA climbed 25% to $41.0 million, while net loss improved to $17.0 million from $43.6 million the previous year. CEO Edward C. Dowling Jr. noted higher volumes of plant nutrition and lower salt costs. Operating profits climbed 9% to $28.1 million, while salt revenue surged by 3% to $166.0 million. Revenue for Plant Nutrition increased by 15% to $44.8 million, while operating income was $5.2 million as opposed to a loss the previous year. The final amount of liquidity following asset sales and refinances was $388.7 million. FY2025 adjusted EBITDA is projected to be between $185 and $201 million.

Compass Minerals International, Inc. (NYSE:CMP) is one of North America’s largest salt producers. Its Goderich rock salt mine in Ontario has unique geology, and with access to a deep-water port, it can provide deicing salt to consumers at a lower cost than competitors. Furthermore, the business owns one of just three naturally occurring brine sources that yield SOP, a specialist fertilizer. These plants in Utah’s Great Salt Lake can generate SOP at a cheaper cost than producers of standard potash. It is among the Best Magnesium Stocks.

6. Ferroglobe PLC (NASDAQ:GSM)

Number of Hedge Fund Holders: 27

Ferroglobe PLC (NASDAQ:GSM) reported $386.9 million in revenue for the second quarter of 2025, up 25.9% on a sequential basis but down 14.2% on an annual basis.

Although adjusted EBITDA was still 62.7% lower than Q2 2024, it recovered to $21.6 million from a loss of $26.6 million in Q1. In Q1, the net loss decreased to $10.5 million from $66.5 million. There was $135.5 million in cash and $10.3 million in net cash. The firm announced a $0.014 dividend that would be paid on September 29 and repurchased 600,434 shares. The company expects EU safeguard actions and U.S. antidumping charges to maintain pricing, but it removed guidance due to macro uncertainties.

Ferroglobe PLC (NASDAQ:GSM) is a world-renowned manufacturer of silicon metal, specializing in alloys based on silicon and manganese, and ferroalloys. It serves a global clientele in rapidly expanding and dynamic end areas, including solar, electronics, consumer goods, automotive, construction, and energy. It is among the list of the Best Magnesium Stocks.

5. Nutrien Ltd. (NYSE:NTR) 

Number of Hedge Fund Holders: 32

Nutrien Ltd. (NYSE:NTR) stated on August 6, 2025, that its Board of Directors has declared a quarterly dividend of US$0.545 per share, payable on October 17, 2025, to shareholders of record on September 29, 2025.

Nutrien Ltd. (NYSE:NTR), the world’s largest fertilizer firm by capacity, reported a 36% year-on-year growth in adjusted EBITDA in the first half of 2025, because of strong performance in its main businesses. Higher potash and nitrogen prices, as well as improved retail performance, drove this growth.

PotashCorp and Agrium merged to form Nutrien Ltd. (NYSE:NTR) in 2018, and since then, it has become a world leader in crop inputs and services. The declared dividend points out the company’s ability to repay capital to shareholders while also benefiting from better commodity pricing and improved operational performance. It is one of the Best Magnesium Stocks.

4. Albemarle Corporation (NYSE:ALB)

Number of Hedge Fund Holders: 42

Albemarle Corporation (NYSE:ALB) has announced an improved organizational structure, which went into effect on August 11, 2025, to increase agility and operating efficiency. The newly appointed chief operations officer, Mark Mummert, will continue to report to CEO Kent Masters while managing the supply chain, manufacturing, capital projects, and resources in an integrated model. Netha Johnson is leaving the company as a result of this shift. Former human resources vice president Autumn Gagarinas has been elevated to chief people and workplace transformation officer, where she is in charge of process optimization, talent, and culture. Melissa Anderson continues to manage enterprise strategy, growth, and research and development as chief business transformation officer.

According to Chairman and CEO Kent Masters, Albemarle Corporation (NYSE:ALB)’s functional model is strengthened by the restructuring, which will speed up its market-led growth strategy. The firm aims to maintain manufacturing quality, capitalize on workforce experience, and optimize its lithium and bromine resources by combining operations and connecting people strategy with technology. The business’s focus on productivity and competitive positioning in fast-paced international markets is made apparent by the restructuring. It is ranked fourth on our list of the Best Magnesium Stocks.

3. The Mosaic Company (NYSE:MOS) 

Number of Hedge Fund Holders: 48

The Mosaic Company (NYSE:MOS)has decided to sell Mosaic Potassio Mineração Ltda, which operates the Taquari-Vassouras potash mine in Sergipe, Brazil, to VL Mineração Ltda. The arrangement includes up to $27 million in cash payments, $12 million at closure, $10 million one year subsequently, and $5 million over six years, as well as the transfer of $22 million in asset retirement obligations. The deal is anticipated to close by the end of 2025, subject to clearance by Brazil’s CADE. ​​The Mosaic Company (NYSE:MOS) will lose between $50 and $70 million in books.

The firm calculated that more than $25 million in new funding will be needed to maintain Taquari operations, which it intends to reallocate to possibilities with higher returns. According to CEO Bruce Bodine, The Mosaic Company (NYSE:MOS)’s strategy of concentrating on core industry segments with stronger competitive advantages falls in line with the transaction. Daniel Moreira, CEO of VL Holding, said the acquisition will strengthen Brazil’s domestic potash supply for agriculture, guarantee ongoing investment, and maintain jobs. It is one of the Best Magnesium Stocks.

2. ATI Inc. (NYSE:ATI)

Number of Hedge Fund Holders: 52

Mesirow declared that it served as ATI Inc. (NYSE:ATI)’s exclusive financial advisor in the sale of its East Hartford Operations (EHO) to Barnes Aerospace. The divestment includes a plant in East Hartford, CT, that specializes in the machining of flight-critical components such as rotor hubs, rotorcraft parts, and jet engine discs for both commercial and defense aerospace areas.

ATI Inc. (NYSE:ATI) is a multinational manufacturer of high-performance materials and solutions for the specialty energy, electronics, medical, aerospace, and defense industries. EHO has been providing essential rotating hardware for 75 years and has a solid reputation for both quality and customer service. Mesirow’s Senior Managing Director and Co-Head of Investment Banking, Adam Oakley, acknowledged the significance of the deal and ATI Inc. (NYSE:ATI)’s legacy. Mesirow Investment Banking has completed over 350 transactions across its verticals in recent years, and this acquisition highlights the firm’s proficiency in aerospace and defense carve-outs. It is among the Best Magnesium Stocks.

1. Martin Marietta Materials, Inc. (NYSE:MLM)

Number of Hedge Fund Holders: 58

Martin Marietta Materials, Inc. (NYSE:MLM) and Quikrete Holdings have reached a final asset exchange agreement. The firm will receive $450 million in cash in along with aggregates businesses that produce 20 million tons a year in Virginia, Missouri, Kansas, and Vancouver. Its Midlothian cement the manufacturing facility, cement terminals, and North Texas ready-mix assets will all be purchased by Quikrete. The transaction is expected to finalize in the first quarter of 2026, assuming approvals. The company strengthened its line of products based on magnesia by completing the acquisition of Premier Magnesia, LLC on July 25, 2025.

According to Martin Marietta Materials, Inc. (NYSE:MLM)’s Chair and CEO Ward Nye, the actions are in line with the SOAR 2025 plan and will improve long-term profits by shifting the company’s focus to bolt-on acquisitions and aggregates-led operations. The business projects $1.81 billion in Q2 2025 sales, $328 million in net earnings, and $630 million in adjusted EBITDA. Strong performance led to a hike in the full-year 2025 Adjusted EBITDA estimate to $2.30B, which included Premier’s contributions.

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