Robinhood has achieved a landmark victory. The fintech firm’s stock, after an extraordinary 400% surge over the past twelve months, has earned a coveted position in the S&P 500 index. This milestone, however, is just one part of a broader success story, as a new business venture begins to deliver explosive growth. The critical question for investors is whether this momentum is sustainable.
Robust Fundamentals Underpin the Rally
The excitement surrounding Robinhood is firmly grounded in strong operational performance. Data from August 2025 reveals impressive growth across all key metrics, demonstrating the company’s strengthening position in the competitive fintech landscape:
- Assets on Platform: $304 billion, representing a 112% year-over-year increase.
- Net Deposits: $4.8 billion for the month of August.
- Margin Balances: Grew to $12.5 billion, a 10% rise from July.
- Active Customers: A user base of 26.7 million.
These figures highlight Robinhood’s ability not merely to compete but to excel, attracting significant capital and expanding its customer reach.
Should investors sell immediately? Or is it worth buying Robinhood?
Index Inclusion Fuels Institutional Demand
The formal inclusion into the S&P 500 on September 22nd signifies a major turning point for the online broker. This move has substantial practical implications, compelling a wide array of passive index funds and ETFs to purchase Robinhood shares to accurately mirror the index’s composition. At the moment of its inclusion, Robinhood held the remarkable distinction of being the top-performing stock within the entire S&P 500 over the preceding year, a testament to its dramatic ascent.
Prediction Markets Emerge as a Powerhouse
While its core brokerage services remain vital, Robinhood’s collaboration with Kalshi on prediction markets is rapidly becoming a surprise growth engine. These markets, which allow users to trade on the outcomes of political and sporting events, are exhibiting staggering expansion. Trading volumes related to NFL and NCAA football have been particularly strong, setting new records.
This segment alone is estimated to be generating annualized revenue exceeding $200 million based on September’s activity. The potential of these event contracts prompted analysts at Piper Sandler to swiftly raise their price target on Robinhood shares from $120 to $140, citing significant additional upside.
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