Key Takeaways:
- Hedge funds are increasingly shorting US critical minerals companies, signaling market skepticism that government backing alone can overcome China’s entrenched supply chain dominance and sustain current valuations.
- Despite significant US policy and financial support designed to reshore critical minerals production, investors are concerned about the sector’s long development cycles, high capital intensity, and China’s strategic ability to influence global prices and supply.
- The divergence between policy-driven optimism and growing institutional short interest highlights the formidable challenges in building a competitive, resilient critical minerals supply chain outside China, underscoring the gap between rhetoric and economic reality.
A Geopolitical Chess Match Unfolds in Critical Minerals: Hedge Funds Bet Against US Reshoring Ambitions
The global race for critical minerals, essential for everything from electric vehicles and wind turbines to advanced defense systems, has intensified into a high-stakes geopolitical contest. Against this backdrop, an intriguing narrative is unfolding on Wall Street: hedge funds are significantly increasing their short positions against US critical minerals companies. This move signals a profound market skepticism, questioning whether the robust backing from the US government, particularly under administrations keen on supply chain resilience, will be sufficient to dislodge China’s formidable stranglehold on global supply chains.
Data from S&P Global Market Intelligence reveals a noticeable uptick in short positions—bets that a stock’s value will decline—this year against key players such as US Antimony Corporation (USAC), American Resources Corporation (ARC), and MP Materials (MP). This trend is a stark counterpoint to the blistering rally these stocks experienced last year, a rally largely fueled by the US government’s injection of billions of dollars into the sector through equity stakes, loans, and strategic contracts. The objective was clear: sever dependence on China and cultivate a robust domestic supply chain for these vital materials.
However, the market’s initial enthusiasm appears to be waning, replaced by a more sober assessment of the sector’s long-term viability. Investors are increasingly concerned that the previous rally may have overshot, driven more by aspirational policy than by fundamental economic realities. The sheer scale and time required to meaningfully alter deeply entrenched global supply chains, coupled with China’s proven capacity to undermine nascent overseas producers by strategically flooding the market, are significant deterrents.
Siegfried Eggert, chief executive of Grizzly Research, a prominent short seller that previously published a critical report on MP Materials, candidly remarked that some stocks appeared to have been bid up purely by “rhetoric.” He added that certain companies might not “have enough economic substance to sustain these stock prices, to put it very politely,” underscoring a fundamental disconnect between market valuation and underlying business strength. While declining to comment on his firm’s current positions, his observations resonate with the growing bearish sentiment.
The Trump administration’s emphasis on national security and economic independence ignited significant interest in the minerals sector, boosting share prices for many companies involved in producing or aspiring to manufacture rare earth elements—critical for permanent magnets in electric vehicles, wind turbines, and consumer electronics—and metals vital for the defense supply chain, including tungsten, germanium, and antimony.
MP Materials, which gained notoriety partly through an investment from “Spac king” Chamath Palihapitiya in a 2020 deal, saw its shares more than triple last year. This surge was further bolstered by the US government acquiring an equity stake and providing a minimum guaranteed price for specific products, an implicit derisking strategy. Similarly, shares in USAC almost tripled in 2025 (assuming a forward-looking date from the original article, let’s adjust to reflect recent past for consistency, e.g., “last year”). The company secured a substantial contract to supply up to $245 million of antimony to the Pentagon last year and received a $27 million investment in March out of emergency funds earmarked for Ukraine. The presence of high-profile board members, such as retired General Jack Keane, a figure previously lauded by President Donald Trump, further amplified its profile.
American Resources Corporation’s former subsidiary, ReElement Technologies—in which ARC retains a 17 percent stake and shares a chief executive—announced in July securing $25 million in funding from the defense department. USA Rare Earth, another stock that experienced a significant surge last year, received $1.6 billion in conditional funding from the Commerce Department in exchange for approximately a 10 percent equity stake. These investments, while substantial, illustrate the government’s direct attempt to stimulate domestic capacity.
Such stocks became a magnet for retail investors, particularly those drawn to the “reshoring” narrative and geopolitical themes. Vanda Research data shows almost $200 million of retail money flowed into USAC and USA Rare Earth combined last year, a stark contrast to the negligible amounts in prior years. This surge in retail interest often precedes increased volatility and, sometimes, a more critical re-evaluation by institutional players.
However, despite Washington’s aggressive efforts and significant financial commitments, China’s control over the vast majority of the world’s critical minerals supply chain remains largely unchallenged. This dominance is the result of decades of strategic investment, vertical integration, and, in earlier periods, less stringent environmental regulations, which allowed China to develop a cost-effective and highly efficient industry from mining to advanced processing.
A recent report from Safe’s Center for Critical Minerals Strategy highlighted that the West’s ability to improve its minerals supply chains hinges less on mere geological resource access and more on addressing a “persistent financing gap” from public entities. Developing new mines and sophisticated processing facilities is not only extraordinarily capital intensive but can also take a decade or more to bring online, a timeframe that often clashes with quarterly investor expectations and political cycles. Some investors are warning that even the substantial US government investment, while a positive step, may prove insufficient to dismantle China’s deeply embedded dominance.
The percentage of shares on loan—a widely accepted proxy for short selling—for processor USAC has dramatically surged from 23 percent to 42 percent of its market capitalization this year, according to S&P Global Market Intelligence. Similarly, short positions on ARC—a critical mineral extraction and recycling company that reported no revenue last year—stand at 23 percent, up from 9 percent at the end of last year. Shares on loan for MP Materials, by far the largest rare earths miner in the US, have also risen this year, while bets against USA Rare Earth—a loss-making company that has yet to commence mining from its Texas deposit—have edged higher.
Christian Putz, founder and chief executive of investment firm ARR Investment Partners, articulated the core challenge: China effectively holds a monopoly on rare earth processing. He cautioned, “if history is any guide, those rare earths have massive [price] increases for a short period of time but then . . . China basically crushes the market,” referring to China’s historical willingness to flood the market to undermine competitors and maintain its strategic advantage.
Adding another layer of geopolitical complexity, last month MP Materials and USA Rare Earth were added to China’s export control list due to their links to the US military. This move was a direct retaliatory measure following Washington’s similar designations against Chinese companies, including Alibaba. Eggert emphasized the reality of this power dynamic: “In the real world, China is the dominant player that has the most levers to pull [on rare earths] . . . All the processing facilities of size are in China.”
Mark Jensen, chief executive of both American Resources and ReElement, responded to inquiries with a pointed dismissal, stating, “We have zero desire to speak to you as you are a slanted negative person that doesn’t care about people trying to do real things for the world.” This emotional response highlights the defensive posture some companies adopt when facing critical market scrutiny.
MP Materials declined to offer direct comment on the short interest. However, a person close to the company indicated that “a very substantial portion” of the increased short interest against MP was attributable to arbitraging its $862 million worth of convertible bonds, rather than outright bearish bets against the company’s equity. This suggests that some shorting might be a technical play related to fixed-income derivatives, not a direct fundamental short, though the overall increased short volume still signals a complex market perception.
USA Rare Earth also declined to comment on its share activity, though it reiterated its strategic focus: “The strategic need for a secure rare earth value chain outside China is only growing. USA Rare Earth is focused on execution to meet that demand.”
Gary Evans, chief executive of USAC, stated the company had “done a lot of homework trying to figure out” who was shorting its stock, indicating a proactive, albeit potentially frustrated, attempt to understand the forces arrayed against its share price.
Market Impact:
The burgeoning short interest in US critical minerals companies signals a crucial pivot in market sentiment, shifting from unbridled optimism fueled by government policy to a more pragmatic, risk-adjusted assessment. This trend could exert sustained downward pressure on the valuations of many sector players, potentially making it harder for these capital-intensive ventures to secure additional private financing. For policymakers, it highlights the immense challenge and cost of genuinely reshoring strategic supply chains, suggesting that government support alone may not be sufficient without significant de-risking over decades. Furthermore, increased volatility in these stocks could deter retail investors, while institutional investors will likely demand more robust business models, proven economic viability, and clearer pathways to profitability, rather than just relying on geopolitical narratives. Ultimately, this market skepticism underscores the enduring power of China’s established infrastructure and strategic leverage, forcing a realistic re-evaluation of the timeline and feasibility of creating truly independent critical minerals supply chains.