The Week in Prediction Markets #23 - May 17 - May 23, 2026
Curated news and articles on Prediction Markets 🔮
Polymarket wallet compromise sparks discussion about the protocol’s security. Link
Minnesota becomes the first state to ban prediction markets. Link
Kalshi & Polymarket are co-defendants in new lawsuit by Rhode Island Attorney General. Link
South Korea probes Polymarket for gambling law violations. Link
Malta’s economy minister says the country should regulate prediction markets. Link
60 Minutes covers insider trading on prediction markets. Link
More than one-third of Polymarket’s monthly notional volume comes from its top 1,000 users. Link
Kalshi continues adding incentivized markets as a way to improve market quality. Link
Polymarket rebates 20–25% of daily fees to market makers providing liquidity that gets taken, roughly $200K/day. Link
Over $100M in rewards have been distributed by Polymarket across Holding Rewards, LP Rewards, Referral Fees, and Maker Rebates. Link
Prediction markets continue posting large weekly figures, with total weekly notional volume surpassing $6.7B. Link
HIP-4 has processed around $60M in volume since launching earlier this month. Link
Polymarket U.S. files with the CFTC regarding the implementation of parlays. Link
Polymarket introduces a taker tier rebate program. Link
Taker rebates on Polymarket are set to go live on May 28. Link
Polymarket reloads new SDKs. Link
Polymarket Maker Rebate Calculator. Link
Limitless is hiring for multiple positions. Link
Two Weeks of HIP-4: A Forensic Look at Hyperliquid’s Outcome Markets. Link
📅 Events
Markets Mixer, a prediction markets event during NY Tech Week. Link
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