Solaris Energy Infrastructure to Join S&P SmallCap 600
Solaris Energy Infrastructure Inc. (NYSE: SEI) will replace Catalyst Pharmaceuticals Inc. in the S&P SmallCap 600 index. The change is effective prior to the market open on July 15, 2026.
Solaris Energy Infrastructure Inc. (NYSE: SEI) is set to be added to the S&P SmallCap 600 index, replacing Catalyst Pharmaceuticals Inc. (NASD: CPRX). The change is scheduled to take effect before the market opens on Wednesday, July 15, 2026.
Catalyst Pharmaceuticals is being removed from the index due to its acquisition by Angelini Pharma S.p.A., a deal expected to close soon pending final conditions. Solaris Energy Infrastructure operates in the energy sector, while Catalyst Pharmaceuticals is in health care.
The S&P SmallCap 600 is a stock market index representing 600 U.S. companies with small market capitalization. Inclusion in such an index can signal growth and increased visibility for a company within the investment community.
Solaris Energy Infrastructure focuses on energy infrastructure development and management. The company's addition to the index highlights its growing presence and market value in the energy industry.