Thomson Reuters Corp (NASDAQ:TRI) saw a modest 0.5% increase in premarket trading Monday following an announcement from Nasdaq that the company will be added to the Nasdaq-100 Index, one of the most prominent benchmarks in U.S. equity markets.
The financial data and media company is set to replace ANSYS Inc. (NASDAQ:ANSS) in the Nasdaq-100 Index and the Nasdaq-100 Equal Weighted Index before markets open on Monday, July 28, 2025. Alongside this, Thomson Reuters will also be added to several key tech-focused indices, including the Nasdaq-100 Tech Sector Index, the Nasdaq-100 Technology Sector Market-Cap Weighted Index, and the Nasdaq-100 Technology Sector Adjusted Market-Cap Weighted Index.
As a result, ANSYS will be removed from a number of Nasdaq indices, such as the Nasdaq-100 ESG Index, the Nasdaq-100 ex Top 30 Index, the Nasdaq-100 ex Top 30 UCITS Index, and the Nasdaq-100 Select Equal Weight Index.
Inclusion in the Nasdaq-100 is often seen as a positive catalyst for companies, as it raises their profile among institutional investors and increases demand from index-tracking funds. ETFs and mutual funds that mirror the Nasdaq-100 must acquire shares of any new constituents, which can help buoy a stock’s performance.
The Nasdaq-100 Index is composed of the 100 largest non-financial companies listed on the Nasdaq exchange based on market capitalization.
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