Lynas Rare Earths Ltd (ASX: LYC) shares were one of the standout performers on the Australian share market Wednesday. The share price of the rare earths producer surged 16% to $20.59.
Lynas shares continued a remarkable run that has seen the stock climb roughly 192% over the past 12 months and about 65% since the start of 2026.
Here's why Lynas shares were racing higher Wednesday — and whether the rally could continue.
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Long-term Japanese supply deal
Lynas shares soared after the company announced a major long-term supply agreement with Japanese industry, locking in demand for its rare earth products.
Under the deal, Japan will secure access to Lynas' rare earth materials for 12 years. The agreement also includes a minimum pricing structure, designed to protect producers from aggressive price undercutting in the market.
Investors appear to have welcomed the move. Long-term supply contracts provide greater revenue visibility and reinforce Lynas' position as a critical supplier for countries looking to reduce their reliance on Chinese rare earth processing.
Given the strategic nature of these materials, which are essential for EV motors, wind turbines, and defence systems, the deal strengthens Lynas' geopolitical relevance and commercial outlook.
Strengths behind the Lynas rally
A major strength for Lynas is its unique strategic position in the global rare earth supply chain. China dominates roughly 90% of rare earth processing capacity, meaning Western governments are increasingly keen to secure alternative suppliers.
As one of the few major rare earth producers outside China, Lynas has found itself in a strategic sweet spot. This has driven strong policy support and investment into companies like Lynas, which operates the Mt Weld mine in Western Australia and processing facilities in Malaysia and the US.
Demand trends also look favourable. Prices for key rare earth metals such as neodymium and praseodymium have climbed to multi-year highs amid tight supply and rising demand from electric vehicles and clean-energy technologies.
In addition, analysts expect the company's financial performance to accelerate in the coming years. Forecasts suggest earnings growth of around 40% per year, reflecting higher production volumes and stronger pricing.
These tailwinds have helped fuel the extraordinary performance of Lynas shares investors have witnessed over the past year.
Risks investors should watch
Despite the strong momentum, Lynas is not without risks.
Rare earth prices can be extremely volatile, and any sharp fall could quickly weigh on earnings. The sector is also heavily influenced by geopolitical tensions and policy changes, which can shift market dynamics rapidly.
Operational risks remain another factor. Mining and processing rare earths is technically complex, and disruptions or cost blowouts at facilities could impact profitability.
What next for Lynas shares?
Valuation risk is emerging after the recent rally. Some brokers are warning Lynas shares could be running ahead of fundamentals if growth expectations fail to materialise.
As a result, Bell Potter believes the run has gone too far and that Lynas shares now reflect overly optimistic long-term rare earth prices.
The broker has a sell rating and a 12-month price target of $11.60. This suggests a 44% downside from current price levels.
