Kalshi, the CFTC-regulated exchange known for listing event contracts on outcomes ranging from elections to economic data, has started streaming its complete order books through DoubleZero. The Block reported the development on August 12, 2026, describing Kalshi as the first prediction market platform to offer this kind of full order-book access.
Order books show every active bid and offer on an exchange, not just the best available prices. Streaming the full book gives traders a more complete picture of market depth and sentiment. For a prediction market, that depth can be particularly useful, since prices on event contracts reflect aggregated views on the likelihood of a specific outcome.
DoubleZero is described in the report as the network used to carry this data feed. The choice of infrastructure suggests Kalshi is prioritizing low-latency, reliable delivery of order-book information to traders and third-party platforms that consume its data. Details about DoubleZero's broader operations were not included in the report.
Kalshi has expanded aggressively since receiving regulatory clearance to operate as a designated contract market. It now lists contracts covering political outcomes, macroeconomic releases, weather events, and other real-world occurrences. Its growth has drawn attention from both traditional finance participants and crypto-native traders, many of whom are accustomed to on-chain markets that already emphasize transparent, verifiable data.
Providing full order-book visibility could help Kalshi differentiate itself from other prediction market operators, including decentralized platforms that already publish on-chain trading data. Transparency around order flow has become a competitive point across trading venues generally, not just in prediction markets, as traders increasingly demand access to the same data available to market makers and institutional participants.
The report did not specify whether the full order-book stream is available to all users or limited to certain data partners, nor did it detail pricing or access terms for the feed. It also did not describe DoubleZero's technical architecture or its other clients, if any. Those specifics were not part of the information released alongside this development.
As prediction markets attract more capital and regulatory scrutiny, infrastructure choices like this one are likely to draw continued attention. Exchanges that can demonstrate transparent, verifiable data practices may find that an advantage as the category matures and competes for both retail and institutional order flow.
Market Impact
Full order-book transparency could make Kalshi more attractive to algorithmic traders and market makers who rely on depth data to price event contracts efficiently. Greater visibility into order flow may also help Kalshi build credibility with regulators and institutional partners as prediction markets continue to expand beyond retail speculation.
The broader effect on the prediction market sector will depend on whether competitors adopt similar data-streaming practices. If full order-book access becomes a standard expectation, other platforms, including decentralized alternatives, may face pressure to match Kalshi's level of transparency to remain competitive for trading volume.
Kalshi's move to stream full order books via DoubleZero adds a data-transparency dimension to the ongoing competition among prediction market platforms, though further details on access and infrastructure remain limited at this stage.
Frequently Asked Questions
What did Kalshi announce?
According to The Block, Kalshi is now streaming its complete order books through the DoubleZero network, making it the first prediction market to offer this feature.
Why does full order-book access matter?
Full order books show all active bids and offers, not just top prices, giving traders a fuller view of market depth and sentiment on event contracts.
What is Kalshi?
Kalshi is a CFTC-regulated exchange that lists event contracts, letting users trade on the outcomes of elections, economic data, weather, and other real-world events.
What is DoubleZero's role in this?
DoubleZero is identified in the report as the network used to carry Kalshi's order-book data stream, though further technical details were not disclosed.
Is the order-book data available to all Kalshi users?
The report did not specify whether access is open to all users or limited to certain partners, so those details remain unclear.