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PredictionBubbles maps prediction market pricing across venues

The dashboard lets users filter and size probability “bubbles” by metrics like open interest and 24-hour volume, and it links Kalshi and Polymarket data into a single view.

Reported · Written up by our desk · Market Structure

PredictionBubbles is a dashboard that consolidates prediction markets, including Polymarket and Kalshi, into one screen to help users discover and analyze tradable questions without manually browsing each venue, according to CryptoSlate.

The live site displays probability and also tracks price movement and volume, with tools to size and filter bubbles by open interest, 24-hour volume, activity ratio, category, platform, expiry, probability, and open interest. The interface is designed like stock or crypto asset screeners and heat maps, CryptoSlate said.

CryptoSlate also highlighted how the platform is tied to outside data and analytics, noting that in April ProCap Financial said Kalshi Research would feed real-time prediction market figures into ProCap Insights for paying subscribers.

The piece cautioned that a displayed price that appears to imply a probability, such as the article’s example of a 63% price, does not necessarily translate to an unconditional forecast because contract terms, trading windows, and settlement mechanics affect what the number means. It cited unreviewed research on Kalshi and Polymarket contract pricing behavior, including findings that calibration on certain Kalshi contracts was strongest in the middle of contracts and that Polymarket’s five-minute Bitcoin contracts showed patterns tied to Binance spot flows near the end of trading, with any causal reading described as an inference.

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