Platform volumes, liquidity & predictive edge
Key Questions
What were the Q2 2026 prediction market volumes and market shares?
Total volume reached a record $113.8B, with Kalshi at 58.9% and Polymarket at 30.2%. Kalshi alone took $12.4B in World Cup bets with 3M new users.
How accurate are Polymarket predictions compared to PredictIt?
A study showed Polymarket at 67% accuracy versus PredictIt's 93%, challenging claims of superior predictive edge despite high volumes like $5.81B across World Cup markets.
What institutional integrations and launches are expanding prediction markets?
Talos integrated Kalshi for institutional trading with algorithmic execution, while tastytrade launched CFTC-regulated markets. Fanatics acquired CFTC-registered DCM and DCO infrastructure from BGC Group.
What is Bernstein's forecast for prediction market volumes?
Bernstein forecasts $1T in annual prediction market volume by 2030, citing growth from new verticals like biopharma, music, and climate alongside mainstreaming signals like OpenAI's use of Kalshi forecasts.
How are platforms like Robinhood and Hyperliquid entering the space?
Robinhood is in talks with Crypto.com to integrate prediction markets, while Hyperliquid's HIP-4 enables permissionless PMs and partners with Multicoin Capital to support CFTC frameworks.
What tax issues have arisen from high-volume events like the World Cup?
$25B in World Cup bets has raised IRS classification questions on winnings, with no guidance yet issued on whether they are treated as gambling or investment income.
How did the World Cup final impact trading on Polymarket?
The final day saw $5.5B volume, with Polymarket traders losing $37M overall across 52 markets, highlighting both liquidity surges and risks in event contracts.
What new verticals and partnerships are emerging in prediction markets?
New markets include climate (Wyldfyre, Wealthsimple), entertainment, and sports like LeBron James free agency ($245M volume). ProphetX partnered with Players' Lounge amid Cboe and ICE interest.
Q2 2026 volume $113.8B record; Kalshi 58.9%, Polymarket 30.2%. Kalshi took $12.4B World Cup bets, 3M new users. World Cup generated $20B in blockchain prediction market volume, 63% of all PM activity, US and China lead, low illicit activity (<1%). Bernstein forecasts $1T by 2030; new Asia-centric projection $300B this year. Fanatics acquires CFTC-regulated exchanges with BGC partnership. CME announces sports futures and sues CFTC; Underdog launches own CFTC-licensed exchange. Robinhood Q2 prediction volumes up 57% vs Q4 2025, $156M revenue. MLB and NHL sign prediction market deals with Polymarket and Kalshi. Kalshi Mars visit odds at 13% with $114k volume. La Liga champion odds on Polymarket. Polymarket institute operational. Eventual launches as prediction market media. Fed rate hike odds divergence. Music prediction markets expanding. Binance.US to challenge. CME and FanDuel partner. Robinhood Q2 confirms prediction markets core revenue driver. Fanatics acquires exchange/clearinghouse (duplicate). Novig named exclusive prediction market partner of New York Mets. Gemini launches public predictions market volume API. Arbitrage opportunities flagged. Binance.US to file CFTC license application. Weekly volume now $10.8B. Platform ranking article provides concrete fee comparisons (5% vs 7% taker) and liquidity data. New: Novig launches CFTC-approved sports prediction market platform with $6B volume and $75M funding, a major new competitor. ProphetX partners with EPICK Fantasy for CFTC-regulated sports markets. Polymarket partners with Genius Sports to pair live sports streams with real-time event contracts, a step toward mainstream integration. Polymarket seeks $20B+ valuation and $1B raise, signaling mainstream confidence. Maine elections draw $42M in prediction market volume. NBA rumor mill drives Curry's next team market to $3.5M volume at Kalshi. Kalshi Vikings QB market shows potential inefficiency. Kalshi launches Public Companies Hub – 75% of users never deposit, becoming an information hub. Kalshi expands into AI/space bets with $1.4M volume. $23.9B monthly volume in Q1 2026, 192M users. New: Benzinga launches prediction markets API for brokers, turning odds into a data product. New: TS Imagine integrates prediction markets data into institutional risk workflows. New: Polymarket partners with On3 for college sports prediction markets, reaching 25M+ monthly fans. New: Genius Sports and Kalshi strike major official data and media partnership, further validating prediction markets as a legitimate data source and media partner. New: World Cup drove 106% female user growth on Kalshi, highlighting demographic expansion. New: Best prediction market apps comparison provides concrete fee/liquidity data for traders. New: NFL MVP odds article provides early-season sentiment for sports traders. New: Kalshi vs Polymarket head-to-head comparison provides practical trader guidance. New: ADP report (44K miss) shows Kalshi markets front-running Fed pivot, confirming predictive edge. New: Cross-platform FOMC divergence (Kalshi 49% vs Polymarket 53%) with $500k+ volume offers arbitrage-like opportunities. New: PREDICT 2026 conference agenda released, signaling industry maturation. New: Kalshi John Wang interview positions platform as 'bigger than CME', highlighting scale ambitions. New: NFL betting guide provides practical strategies for sports traders. New: Polymarket locks in ATP Tour as official prediction market provider with exclusive live streaming rights for 20,000 matches per season, deepening sports integration beyond Genius Sports deal. New: Kalshi S&P 8000 odds at 66% after 5% four-day surge, capturing macro sentiment shift.