ACM Research Set to Join S&P SmallCap 600
Rhea-AI Summary
ACM Research (NASDAQ: ACMR) will be added to the S&P SmallCap 600 index effective prior to market opening on September 26, 2025. The addition comes as WK Kellogg (NYSE: KLG) is being removed from the index due to its pending acquisition by The Ferrero Group.
ACMR will join the index under the Information Technology sector, replacing KLG which was previously listed under Consumer Staples. The change will be implemented once the Ferrero Group's acquisition of WK Kellogg closes, subject to final conditions.
Positive
- Inclusion in S&P SmallCap 600 index can increase visibility and trading volume
- Addition to the index typically leads to increased institutional ownership
- Potential for enhanced market liquidity due to index fund purchases
Negative
- None.
News Market Reaction 25 Alerts
On the day this news was published, ACMR gained 2.20%, reflecting a moderate positive market reaction. Argus tracked a peak move of +3.5% during that session. Our momentum scanner triggered 25 alerts that day, indicating elevated trading interest and price volatility. This price movement added approximately $55M to the company's valuation, bringing the market cap to $2.54B at that time. Trading volume was above average at 1.5x the daily average, suggesting increased trading activity.
Data tracked by StockTitan Argus on the day of publication.
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 | |
Sept 26, 2025 | S&P SmallCap 600 | Addition | ACM Research | ACMR | Information Technology | |
Sept 26, 2025 | S&P SmallCap 600 | Deletion | WK Kellogg | KLG | Consumer Staples | |
ABOUT S&P DOW JONES INDICES
S&P Dow Jones Indices is the largest global resource for essential index-based concepts, data and research, and home to iconic financial market indicators, such as the S&P 500® and the Dow Jones Industrial Average®. More assets are invested in products based on our indices than products based on indices from any other provider in the world. Since Charles Dow invented the first index in 1884, S&P DJI has been innovating and developing indices across the spectrum of asset classes helping to define the way investors measure and trade the markets.
S&P Dow Jones Indices is a division of S&P Global (NYSE: SPGI), which provides essential intelligence for individuals, companies, and governments to make decisions with confidence. For more information, visit www.spglobal.com/spdji/en/.
FOR MORE INFORMATION:
S&P Dow Jones Indices
index_services@spglobal.com
Media Inquiries
spdji.comms@spglobal.com
View original content:https://www.prnewswire.com/news-releases/acm-research-set-to-join-sp-smallcap-600-302563572.html
SOURCE S&P Dow Jones Indices