Full Press Release Details
NEW YORK , June 30, 2026 /PRNewswire/ -- Allison Transmission Holdings Inc. (NYSE: ALSN ) will replace Goodyear Tire & Rubber Co. (NASD: GT) in the S&P MidCap 400, and Goodyear Tire & Rubber will replace Stellar Bancorp Inc. (NYSE: STEL ) in the S&P SmallCap 600 effective prior to the opening of trading on Monday, July 6. S&P MidCap 400 constituent Prosperity Bancshares Inc. (NYSE: PB ) is acquiring Stellar Bancorp in a deal expected to close July 1.
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 6, 2026
S&P MidCap 400
Addition
Allison Transmission
ALSN
Industrials
July 6, 2026
S&P MidCap 400
Deletion
Goodyear Tire & Rubber
GT
Consumer Discretionary
July 6, 2026
S&P SmallCap 600
Addition
Goodyear Tire & Rubber
GT
Consumer Discretionary
July 6, 2026
S&P SmallCap 600
Deletion
Stellar Bancorp
STEL
Financials
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