Kalshi first prediction market to stream full order books via DoubleZero

AI Summary The move gives institutional traders direct access to Level 1 and Level 2 data without having to reconstruct the book from APIs. fulltext: 128 chars | fulltext source: rss-fallback | summary method: extractive Original: https://www.theblock.co/news/markets/2026-08-12-kalshi-first-prediction-market-to-stream-full-order-books-via-doublezero-411589 Source: The Block