PredictionBubbles has launched a dashboard that consolidates prediction markets like Polymarket and Kalshi into a single interface. The platform visualizes tradable questions as bubbles, indicating probability, price movement, and volume, facilitating market discovery without browsing individual markets. Users can adjust bubble sizes based on open interest, 24-hour volume, or activity ratios, and filter by various criteria. In April, ProCap Financial announced a supply agreement with Kalshi Research to provide real-time prediction market data to ProCap Insights. Polymarket has also introduced public market-discovery APIs and order-book data. Kalshi reported an 800% increase in institutional trading volume over six months and launched Kalshi Pro in beta for market managers in July. A July working paper analyzing 23 million Kalshi trades indicated that calibration was strongest mid-contract, deteriorating in the final 10 minutes. A separate June paper on Polymarket's Bitcoin contracts noted a spike in Binance spot flow in the last 10 seconds. As prediction markets evolve, the competition is shifting towards organizing and interpreting prices for users.
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