JioHotstar and Magnite today announced an expanded partnership that deploys Magnite's SpringServe platform as the core mediation layer across JioHotstar's live streaming, sports, and entertainment inventory. The announcement, made on June 4, 2026 from Mumbai, marks a deepening of an existing commercial relationship and adds technical specificity to how one of the world's largest streaming services intends to manage programmatic advertising at scale.

According to Magnite, the collaboration involves JioHotstar leveraging SpringServe to power advanced mediation across the full breadth of its content portfolio. The deployment covers live sports - including this year's ICC Men's T20 World Cup - as well as the platform's entertainment and linear channel content.

What JioHotstar brings to the table

The scale of JioHotstar's operation places this partnership in a distinct category. According to Magnite, the platform has 450 million monthly average users and a library exceeding 300,000 hours of programming. Content is available in 19 languages, spanning movies, originals, live sports, live events, anime, kids' entertainment, and television shows from more than 100 channels in the JioStar network. The platform is accessible via Android, iOS, and the web at hotstar.com/in.

JioHotstar was formed in February 2025, when JioCinema - the streaming service operated by Viacom18 under Reliance Industries - merged with Disney+ Hotstar. The resulting platform, owned by JioStar, a joint venture between Reliance Industries, Viacom18, and Disney India, consolidated cricket rights, Bollywood film libraries, Disney and Marvel content, and a large back catalogue of Indian television programming into a single destination.

The ICC Men's T20 World Cup, the specific event referenced in the announcement, is among the most-watched annual sporting competitions globally. In India, cricket advertising generates substantial spending. The combination of live audiences and digital delivery makes tournaments like the T20 World Cup technically and commercially significant for streaming platforms, where the infrastructure supporting ad delivery must operate with low latency, predictable uptime, and granular controls over creative quality.

How SpringServe fits into the architecture

SpringServe is Magnite's video ad server, now integrated with the company's supply-side platform following a merger of those two systems completed in April 2025. The unified platform combines ad serving, programmatic mediation, and yield optimization into a single infrastructure layer for streaming publishers.

For JioHotstar, the platform provides enhanced control over programmatic creatives and greater visibility into demand quality. According to Magnite, this helps ensure consistent ad quality, supports brand safety enforcement, and maintains high-quality ad experiences for viewers across sports and entertainment inventory.

Technically, mediation in this context means the system sits between JioHotstar's inventory and multiple demand sources - managing which advertiser bids are accepted, in what order, and under what conditions. SpringServe's mediation layer allows a publisher to set floor prices, apply creative quality filters, enforce category exclusions, and manage how different demand sources - including direct-sold campaigns, private marketplace deals, and open exchange transactions - compete for each available ad slot.

"Maintaining ad quality and transparency across our open exchange is a priority as our programmatic business scales," said Bharath Ram, Chief Product Officer at JioHotstar. "Magnite's SpringServe gives us the operational control we need to manage demand quality and enforce standards consistently across our sports and entertainment inventory."

Brand safety and creative quality enforcement are particularly sensitive in live sports environments. Unlike on-demand content, live streaming offers fewer points at which ad insertion can be paused or adjusted. Publishers managing live inventory must apply creative screening before delivery rather than retrospectively, making the mediation layer a critical control point.

Live sports as a testing ground

The ICC Men's T20 World Cup served as a proving ground for the partnership. Live cricket in India has historically generated the country's largest simultaneous streaming audiences. According to Magnite, the company supported JioHotstar during this year's tournament - a deployment that tested SpringServe's capacity to handle the spike in bid volume, enforce creative standards, and maintain delivery quality at national scale.

Magnite introduced its Live Scheduler tool in November 2025 specifically to address the operational complexity of live event advertising. That product was designed to remove friction from the process of configuring programmatic campaigns around time-specific events, where advertisers need to specify windows, formats, and targeting parameters aligned to event schedules rather than standard always-on campaigns.

The challenge of live sports monetization is well-documented in programmatic infrastructure. FanDuel Sports Network, a Magnite SpringServe client, reported a 25% year-over-year increase in total impressions served through the platform in July 2025, with the growth occurring specifically in live sports streaming. The network, operating 15 regional channels covering MLB, NHL, and NBA teams, cited SpringServe's ability to manage both direct and programmatic demand simultaneously during live broadcasts.

Paramount Australia also adopted SpringServe for programmatic streaming ads in July 2025, using the platform's mediation capabilities to streamline advertiser access to premium streaming inventory for the first time.

"The success achieved during this year's cricket World Cup is a significant milestone in our collaboration and builds on our experience supporting some of the largest live events globally," said Sahil Bansal, Country Manager, India at Magnite.

Magnite's position in India

India's digital advertising market has been growing steadily, driven by smartphone penetration, affordable mobile data, and a large young population. Magnite has had a commercial presence in India for several years, with its Mumbai office listed among its core international locations alongside New York, Los Angeles, Denver, London, Singapore, and Sydney.

The JioHotstar partnership marks a meaningful signal about programmatic maturity in India's streaming sector. The decision to deploy dedicated mediation infrastructure - rather than managing demand through simpler, less configurable integrations - reflects the increasing complexity of JioHotstar's programmatic operation as it scales.

According to Magnite, the company is the largest independent sell-side advertising company globally. As of Q1 2026, connected television advertising crossed 51% of Magnite's total contribution ex-TAC for the first time, reaching $82.3 million and representing 30% year-over-year growth. Total revenue for the quarter reached $164.4 million, up 6% from $155.8 million in Q1 2025. That CTV momentum is directly relevant to partnerships like the one with JioHotstar, where streaming sports inventory represents premium, high-demand placements.

Magnite's SpringServe platform has been expanding its capabilities steadily. Machine learning-powered ad podding was introduced in October 2025 to optimize ad pod construction for CTV publishers, reducing redundant bid requests and improving auction efficiency. In April 2026, Magnite expanded AI capabilities across the SpringServe mediation layer, adding three specific AI-supported features including anomaly detection - which helps publishers identify unusual shifts in auction dynamics in near real time.

What this means for programmatic buyers

From the demand side, the deployment of SpringServe at JioHotstar opens access to more structured programmatic pathways into one of India's largest premium video environments. Buyers accessing JioHotstar inventory through Magnite's infrastructure benefit from the enforcement standards that SpringServe's mediation applies - meaning creatives delivered into the live sports environment will have passed through quality filters set by the publisher.

Magnite maintains 99% coverage of the connected television supply market according to Jounce Media's March 2025 Supply Path Benchmarking Report, giving buyers confidence that deals executed through the platform reach a substantial share of premium streaming inventory globally.

The partnership also signals to buyers that JioHotstar intends to grow its open exchange business in a controlled way. Open exchanges - where any qualified buyer can bid on available inventory - are attractive for scale but require strong quality controls to prevent low-quality creatives from reaching premium sports audiences. The explicit focus on transparency and creative standards in the announcement reflects JioHotstar's approach to growing programmatic revenue without sacrificing the advertiser and viewer experience.

Context in Magnite's global strategy

Over the past 18 months, Magnite has assembled a collection of SpringServe partnerships that span different geographies and content types. Disney's live streaming certification in January 2025 established Magnite as the only third-party SSP in the initial live streaming real-time bidding rollout. FanDuel Sports Network in August 2025 extended live sports monetization in the US regional market. Paramount Australia in July 2025 added the Australian market. The JioHotstar deal now extends this pattern to South Asia, the world's most populous digital video market by user count.

Magnite's first seller agent inside SpringServe, launched in December 2025, tested AI-driven transactions with Scope3 as the buyer agent counterpart. That infrastructure is now being positioned as the foundation for agentic advertising, where automated buyers and sellers negotiate and execute transactions without direct human intervention. Whether JioHotstar will adopt those emerging agentic transaction pathways in the future is not addressed in today's announcement.

Timeline

Summary

Who: JioHotstar, India's largest streaming platform with 450 million monthly average users, and Magnite (NASDAQ: MGNI), the largest independent sell-side advertising company globally.

What: An expanded partnership deploying Magnite's SpringServe video ad server as the core programmatic mediation layer across JioHotstar's live streaming, sports, and entertainment inventory. The integration provides JioHotstar with enhanced control over programmatic creatives, visibility into demand quality, brand safety enforcement, and mediation across multiple demand sources simultaneously.

When: The partnership was announced on June 4, 2026, with the collaboration already tested and operational during this year's ICC Men's T20 World Cup.

Where: India, with JioHotstar operating nationally across Android, iOS, and web platforms. Magnite's India operations are based in Mumbai.

Why: JioHotstar's programmatic business is growing and its open exchange is scaling - requiring more sophisticated mediation infrastructure to maintain ad quality and creative standards consistently at high volume. For Magnite, the deal extends SpringServe's footprint into South Asia's largest and most-used premium streaming platform, reinforcing the platform's positioning as the infrastructure layer for live sports advertising globally.