NEW YORK, Oct. 22, 2026 /PRNewswire/ -- S&P Dow Jones Indices will make the following changes to the S&P SmallCap 600:
- MSG Rangers Inc. (NYSE: MSGR) will be added to the S&P SmallCap 600 effective prior to the opening of trading on Tuesday, October 27, replacing Arbor Realty Trust (NYSE: ABR), which will be removed from the S&P SmallCap 600 effective prior to the opening of trading on Wednesday, October 28. S&P SmallCap 600 constituent Madison Square Garden Sports Corp. (NYSE: MSGS) is spinning off MSG Rangers in a transaction expected to be completed on October 27. Madison Square Garden Sports will be renamed MSG Knickerbockers Inc. (NYSE: MSGK) and will remain in the S&P SmallCap 600. Arbor Realty Trust is no longer representative of the small-cap market space.
- Huron Consulting Group Inc. (NASD: HURN) will replace Supernus Pharmaceuticals Inc. (NASD: SUPN) in the S&P SmallCap 600 effective prior to the opening of trading on Monday, November 2. Indivior Pharmaceuticals Inc. (NASD: INDV) is acquiring Supernus Pharmaceuticals in a deal expected to be completed 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 |
Oct 27, 2026 | S&P SmallCap 600 | Addition | MSG Rangers | MSGR | Communication Services |
Oct 28, 2026 | S&P SmallCap 600 | Deletion | Arbor Realty Trust | ABR | Financials |
Nov 2, 2026 | S&P SmallCap 600 | Addition | Huron Consulting Group | HURN | Industrials |
Nov 2, 2026 | S&P SmallCap 600 | Deletion | Supernus Pharmaceuticals | SUPN | Health Care |
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