Buy, Not Build: Buy-side AI's Late-Summer Acquisition Wave
Three acquisitions landed in buy-side AI within the space of about three weeks. Two came from the same buyer on back-to-back weeks. That is a tight enough clustering to call a pattern rather than coincidence, and it says something specific about where vendors think the fastest route to a complete platform now runs through someone else’s product, not their own roadmap.
The pattern
Rogo bought Rivanna, an AI-native due diligence platform, on 11 August, then bought Arvo, an AI meeting assistant built for financial institutions, on 1 September. Rivanna reads document repositories for financial transactions: it indexes and cites thousands of files from a data room and flags risks for a deal team, and it had already run on hundreds of live transactions with private equity firms before the deal. Arvo automates meeting notes and follow-ups, with retention controls and administrative oversight built for institutional finance rather than a generic note-taker. Rogo’s chief executive framed both moves the same way: each acquisition feeds meeting and document context into Rogo’s own deal room, so that, in his words, each transaction compounds into proprietary institutional memory. Neither deal disclosed financial terms.
The third deal is bigger in scale. Nasdaq completed its acquisition of Dasseti on 2 September, having first announced the deal in late July. Dasseti’s due diligence and monitoring software is being folded into Nasdaq eVestment, and Nasdaq says the combined platform will now reach around 17,000 asset managers and general partners overseeing $34 trillion in assets, spanning manager screening through to ongoing monitoring. The deal is not a cold start either: Nasdaq Ventures first invested in Dasseti back in 2022, so this looks like an option being exercised rather than a snap decision.
A fourth data point sits alongside these, though it is a different kind of move. OpenBB announced on 25 August that it is open-sourcing its entire product suite, Workspace, its data platform, Copilot and the Excel add-in, after concluding it could not build a sustainable commercial business around the product despite reaching millions of users. It is the mirror image of the Rogo and Nasdaq stories: instead of a bigger balance sheet absorbing a smaller product, a vendor that could not clear the commercial bar on its own is giving the technology away and betting on an open ecosystem instead. Worth noting alongside the acquisitions, not folded into the same story.
Why now
None of these three acquisitions bought a company with an idle product. Rivanna and Arvo were both live and used by real institutions before Rogo bought them, and Dasseti was already an established due diligence vendor with its own client base. That is the tell: buyers are not acquiring technology as raw material, they are acquiring a working product and its existing customer relationships in one step, which is faster than building the same feature set from scratch and faster than winning those customers cold. For a platform vendor trying to cover the full deal lifecycle, from sourcing through diligence to monitoring, buying a team that has already solved one piece is a shortcut worth paying for even without a disclosed price tag.
Nasdaq’s rationale points the same direction at a larger scale: it wants to connect manager research with AI-powered due diligence and monitoring in one network, and the fastest way there was a vendor it already had a stake in rather than a multi-year internal build. OpenBB’s decision, by contrast, is a reminder that the same market pressure cuts the other way for a smaller, undercapitalised vendor: if you cannot reach the scale to fund the build yourself, giving the technology away preserves the vision even where it could not sustain a business.
Old question vs new question
| Old question for a fund evaluating an AI vendor | New question worth asking now |
|---|---|
| “What does this product do today?” | “What has this vendor bought or absorbed in the last six months, and is it actually integrated yet?” |
| “Is the vendor well funded?” | “Is the vendor a likely acquirer or a likely target, and what does that mean for your contract in 12 months?” |
| “Does the roadmap look complete?” | “Is that roadmap organic, or built from stitched-together acquisitions that may not share one architecture?” |
What to watch next
Watch whether Rogo’s two acquisitions actually ship as a single integrated workflow rather than three separate logins bolted together, since that is the real test of whether “buy” beats “build” here. Watch too whether Nasdaq’s scale changes pricing or access for smaller asset managers who relied on Dasseti as an independent vendor. And watch whether OpenBB’s open-source bet draws a genuine contributor ecosystem or quietly fades, since that outcome will tell other undercapitalised vendors whether giving the product away is a real third option or just a soft landing.
For the full list of vendors active in buy-side AI, including the ones on either side of these deals, see Qaike’s vendor directory.
This article is based on publicly available information and reflects Qaike’s own analysis and opinions. It is not intended to provide professional advice, endorsement, or a definitive assessment of any vendor or product. While every effort has been made to ensure accuracy, completeness and correctness cannot be guaranteed.
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