Indivior PLC Joins S&P SmallCap 600 Index

By Chris Stiles • Monday, December 22 09:39 • Permanent Link

Indivior PLC (NASDAQ: INDV) has secured a significant achievement by being included in the S&P SmallCap 600® index, effective from December 22, 2025. This move reflects the company's heightened presence in the U.S. capital markets and its focused U.S. business profile.

Joe Ciaffoni, the Chief Executive Officer of Indivior PLC, emphasized the company's dedication to expanding the market for Sublocade®, its primary prescribed long-acting injectable treatment for moderate to severe opioid use disorder. He also highlighted the company's emphasis on leveraging a new and simplified operating model.

The S&P SmallCap 600 index, which measures the performance of the small-cap segment of the market, consists of 600 constituent companies in the U.S. equities market with market capitalizations ranging from $1.2 billion to $8.0 billion.

This inclusion in the S&P SmallCap 600® index follows a period of significant performance and change for Indivior PLC. It would be interesting to see how this achievement reflects in the company's financial metrics, especially as it continues to focus on its U.S. business profile and the growth of Sublocade®. As a result of these announcements, the company's shares have moved 0.91% on the market, and are now trading at a price of $35.865. For more information, read the company's full 8-K submission here.

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