Transact Media Group (TMG) has integrated its Transactional Audiences into the Index Exchange Data Vendor Ecosystem. This integration allows programmatic buyers to utilize real-world commerce signals for targeting and measurement within Index Exchange's marketplace.
The integration of Transact Media Group data into Index Exchange signals a shift toward outcome-based programmatic buying where commerce intelligence is applied at the point of activation. By moving transactional signals to the sell-side, buyers can optimize for incremental spend and account acquisitions rather than just clicks or impressions. This move reflects a broader industry trend where streaming and digital marketplaces must prove direct business impact to maintain premium ad rates. Watch for whether other supply-side platforms follow suit by integrating deep retail and financial transaction data to compete for performance-driven budgets.
Index Exchange launched its Data Vendor Ecosystem as an extension of Index Marketplaces, positioning the SSP as a hub where third-party data segments activate directly on the sell side without added platform fees or custom integrations. AdExchanger reported that Index Exchange's Data Vendor Ecosystem lets curators pick data sources from a pre-integrated partner list and activate them in deal IDs across any DSP, with early partners including Experian, Audigent, DoubleVerify, Dstillery, LiveRamp Data Marketplace, Samba TV, and The Weather Company. Michael Richardson, Index Exchange's VP of product for Marketplaces, described the ecosystem as bringing together "the whole gamut" of data provider partners so that marketplace customers can package segments on the sell side without one-to-one integrations. The Data Vendor Ecosystem has continued to attract new data providers since its initial launch. Mediavine announced in April 2026 that it had become the first publisher partner to bring its audience data into Index Marketplaces, making first-party data and UID2 segments from more than 18,000 independent publishers available through curated deals. The TMG transactional audiences integration follows this pattern, adding commerce and purchase signals to the same sell-side activation layer that Index Exchange has been building out across identity, contextual, and now transactional data types. On the demand side, Index Exchange has also extended its curated deal infrastructure into major DSPs. Experian announced that Audigent curated inventory packages are now accessible on Google DV360, delivered via Index Marketplaces, launching with over 250 ready-to-run deals covering CTV, display, and online video across sectors including automotive, retail, and sports. The integration packages audience data with premium inventory under a single deal ID and eliminates separate DMP fees, a structure that TMG's transactional audiences will also benefit from as they reach buyers through the same Index Marketplaces pipeline. As retail data becomes more central to these strategies, Best Buy LG CTV partnership brings retail shopper data to home screens to further enhance targeting capabilities.
Index Exchange has integrated Transact Media Group (TMG) transactional audiences into its Data Vendor Ecosystem. This partnership allows programmatic buyers to utilize real-world commerce signals for sell-side decisioning. By applying transactional intelligence at the point of impression, marketers can now optimize campaigns for incremental spend and account acquisitions rather than traditional metrics.
The integration allows programmatic buyers to use real-world commerce signals for sell-side decisioning, enabling them to optimize campaigns for actual consumer spend and account acquisitions instead of relying solely on clicks or impressions.
A financial services campaign using TMG signals saw an 18,500 increase in new account openings, while a global retail campaign reported a 34.76% incremental lift in spend, valued at $14 million.
It is a hub within Index Marketplaces that allows third-party data segments to be activated directly on the sell side. This structure enables curators to pick data sources and activate them in deal IDs across any DSP without requiring one-to-one integrations or additional platform fees.
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