Entegris to replace Arcadium Lithium in the S&P 400 at open on 3/6
Written by Emily J. Thompson, Senior Investment Analyst
Updated: Mar 06 2025
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Entegris Replacement: Entegris (ENTG) will replace Arcadium Lithium (ALTM) in the S&P MidCap 400 effective March 6, prior to market opening.
Acquisition Details: Rio Tinto (RIO) is set to acquire Arcadium Lithium, with the deal expected to finalize soon, subject to closing conditions.
About the author

Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.





