On September 8, Arista Networks rose 3.03% in regular trading, trading at $199.77/share, with turnover of $265 million. The rally was driven by the approaching effective date of the company's inclusion in the S&P 100 Index.

S&P Dow Jones Indices previously announced that Arista Networks, along with Palo Alto Networks and SanDisk, will be added to the S&P 100 Index, with the change taking effect on September 21. As the effective date draws near, index funds and ETFs tracking the S&P 100 are required to rebalance their portfolios to reflect the new constituents, generating anticipated passive buying flows that are supporting the stock price. Notably, traditional consumer and industrial names such as Nike and Colgate-Palmolive are being removed, while all four newly added companies come from the technology sector, further concentrating the S&P 100's composition toward AI infrastructure and data center networking.

The inclusion follows a strong fundamental backdrop. In Q2, Arista reported record revenue of $3.04 billion, up 37.7% year-over-year, with adjusted EPS of $1.02 beating the consensus estimate of $0.89 by nearly 15%. The company guided Q3 revenue to approximately $3.3 billion, well above the $2.95 billion Street estimate, underpinned by robust AI-driven networking demand.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)