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Editorial Advisory Board

  • Professor Andrea M. Armani, University of Southern California
  • Ruti Ben-Shlomi, Ph.D., LightSolver
  • James Butler, Ph.D., Hamamatsu
  • Natalie Fardian-Melamed, Ph.D., Columbia University
  • Justin Sigley, Ph.D., AmeriCOM
  • Professor Birgit Stiller, Max Planck Institute for the Science of Light, and Leibniz University of Hannover
  • Professor Stephen Sweeney, University of Glasgow
  • Mohan Wang, Ph.D., University of Oxford
  • Professor Xuchen Wang, Harbin Engineering University
  • Professor Stefan Witte, Delft University of Technology

Why Interactive Brokers (IBKR) Stock Is Trading Up Today

IBKR Cover Image

What Happened?

Shares of electronic brokerage firm Interactive Brokers (NASDAQ: IBKR) jumped 3.4% in the pre-market session after S&P Dow Jones Indices announced the electronic brokerage firm will be added to the S&P 500 index. 

The company is set to replace Walgreens Boots Alliance, which is being taken private by Sycamore Partners, with the change taking effect before the market opens on August 28. 

Inclusion in the prestigious S&P 500 is a significant milestone that typically boosts a company's stock price. This is because index funds and other passive investment vehicles that track the S&P 500 are now required to purchase shares of Interactive Brokers to mirror the index's composition. This automatic buying from institutional investors creates heightened demand for the stock, often leading to increased liquidity and a higher valuation. However, the fundamentals and financial profile of the company are unchanged by inclusion into the S&P 500.

After the initial pop the shares cooled down to $63.07, up 0.5% from previous close.

Is now the time to buy Interactive Brokers? Access our full analysis report here, it’s free.

What Is The Market Telling Us

Interactive Brokers’s shares are quite volatile and have had 16 moves greater than 5% over the last year. In that context, today’s move indicates the market considers this news meaningful but not something that would fundamentally change its perception of the business.

Interactive Brokers is up 38.2% since the beginning of the year, and at $63.07 per share, it is trading close to its 52-week high of $67.63 from August 2025. Investors who bought $1,000 worth of Interactive Brokers’s shares 5 years ago would now be looking at an investment worth $4,790.

Unless you’ve been living under a rock, it should be obvious by now that generative AI is going to have a huge impact on how large corporations do business. While Nvidia and AMD are trading close to all-time highs, we prefer a lesser-known (but still profitable) semiconductor stock benefiting from the rise of AI. Click here to access our free report on our favorite semiconductor growth story.

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