MP Materials Surges 7.96% on Strategic Shifts Hits $900M Volume as 114th-Busiest Stock

On September 18, 2025, , , ranking 114th among stocks traded that day. The surge followed strategic shifts in its rare earth processing operations and renewed investor confidence in long-term supply chain reforms.

Analysts highlighted the stock's momentum as a reflection of sector-specific tailwinds, with MP's focus on domestic refining capabilities aligning with broader policy-driven demand for critical minerals. However, the relatively low volume compared to market leaders suggests the rally remains concentrated among institutional or thematic investors rather than broad-based retail participation.

Back-testing of a involving daily rotation among the 500 highest-volume stocks from January 1, 2022, to present indicates operational limitations in current tools. The proposed approach requires a multi-asset engine not yet accessible through standard platforms. Alternative methods include narrowing the scope to a single benchmark ETF or using fixed universes like the Russell 1000 for simplified volume-based rules.

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