• In August 2026, Flagstar Bank, N.A. announced it had selected Finxact from Fiserv, Inc. as its cloud-native core banking platform, while Thunes revealed a new collaboration with Fiserv to power instant cross-border payouts across more than 140 countries and 90 currencies.
• Together, these agreements underscore how Fiserv’s open, API-first technology is being embedded at the heart of bank modernization and global merchant money movement infrastructure.
• Next, we’ll examine how Fiserv’s role in Flagstar’s core modernization could influence its investment narrative around digital platforms and partnerships.

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Fiserv Investment Narrative Recap

To own Fiserv, I think you have to believe its scale and modern platforms can offset recent earnings pressure and competition in payments and banking tech. The Flagstar core modernization and Thunes payout collaboration both support the case that Fiserv’s open, API-first infrastructure is still being chosen for real-time money movement, but they do not immediately change the key near term tension between slower revenue growth and the need to protect margins.

The Flagstar decision to adopt Finxact as its cloud-native core is particularly relevant here. It highlights how Fiserv’s modernization tools can sit at the center of a bank’s digital strategy, reinforcing the catalyst around deeper platform adoption even as execution risk on major rollouts, product launches, and integrations remains a central issue for shareholders to watch.

Yet behind these wins, investors should be aware that one of the bigger risks is...

Fiserv's narrative projects $21.5 billion revenue and $3.4 billion earnings by 2029.

Uncover how Fiserv's forecasts yield a $62.70 fair value, a 19% upside to its current price.

Exploring Other Perspectives

Some of the lowest ranked analysts take a harsher view than this, expecting Fiserv’s revenue to shrink about 1.3 percent a year and earnings to drift toward roughly US$2.9 billion, so if you agree that integration and modernization risks are front and center, it is worth comparing how these new Flagstar and Thunes deals might shift your expectations relative to that more pessimistic path.

Explore 15 other fair value estimates on Fiserv - why the stock might be worth over 2x more than the current price!

Reach Your Own Conclusion

Disagree with existing narratives? Extraordinary investment returns rarely come from following the herd, so go with your instincts.

• A great starting point for your Fiserv research is our analysis highlighting 3 key rewards and 1 important warning sign that could impact your investment decision.
• Our free Fiserv research report provides a comprehensive fundamental analysis summarized in a single visual - the Snowflake - making it easy to evaluate Fiserv's overall financial health at a glance.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.