NEW YORK, July 9, 2026 /PRNewswire/ — Solaris Energy Infrastructure Inc. (NYSE: SEI) will replace Catalyst Pharmaceuticals Inc. (NASD: CPRX) in the S&P SmallCap 600 effective prior to the opening of trading on Wednesday, July 15. Angelini Pharma S.p.A. is acquiring Catalyst Pharmaceuticals in a deal expected to close soon, pending final closing conditions.
Following is a summary of the changes that will take place prior to the open of trading on the effective date:
|
Effective Date |
Index Name |
Action |
Company Name |
Ticker |
GICS Sector |
|
|
July 15, 2026 |
S&P SmallCap 600 |
Addition |
Solaris Energy Infrastructure |
SEI |
Energy |
|
|
July 15, 2026 |
S&P SmallCap 600 |
Deletion |
Catalyst Pharmaceuticals |
CPRX |
Health Care |
|
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