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The PredictionNews Daily Brief
The Resolution.

Trump says he's 'never much in favor' of prediction markets while backing CFTC oversight

President Trump said he was 'never much in favor' of prediction markets when asked about insider trading concerns on June 1, 2026. The comment came as the White House weighs an effort to block state restrictions on prediction markets in favor of exclusive federal CFTC oversight, a stance praised by both Kalshi and Polymarket. Trump remarks land while the White House reviews active CFTC matters, and while two DOJ-CFTC parallel insider trading cases against prediction market traders are proceeding—one against Google engineer Spagnuolo charged in a $1.2 million Polymarket scheme, and the DOJ-CFTC case against Van Dyke, the first such prosecution.

 
Why this matters?
 

CFTC Chair Selig must now reconcile Trump's simultaneous demand for sole federal control and his personal skepticism of the underlying product. Any final rule text that reads as permissive risks amplifying the insider-trading exposure the DOJ is already prosecuting; any tightening contradicts the White House marching orders.

 
The bigger picture
 

Becomes the third CFTC staff action this week to collide with Trump's public praise of Polymarket, after Selig suspended the compliance officials who flagged the platform and DOJ charged a second insider-trading defendant trading on its contracts.

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DOJ and CFTC file first-ever prediction markets insider trading charge

 
Why this matters?
 

This prosecution tests whether misappropriation theory transfers cleanly to event contracts; any conviction gives CFTC enforcement a template to deploy against Kalshi and Polymarket surveillance gaps. Platforms must now build insider-trading compliance programs or risk co-defendant exposure in future DOJ-CFTC parallel actions.

 

Polymarket partners with Sheep Esports for League of Legends and VALORANT

 
Why this matters?
 

Polymarket must now convert its Sheep Esports and OneFootball media partnerships into actual fee-generating volume before the 2026 World Cup window closes. Kalshi's Interactive Brokers integration and hedge fund courtship already give it deeper institutional liquidity.

 
The bigger picture
 

Polymarket's third partnership announced in under a week — after OneFootball and its existing MLB and PrizePicks deals — deepens its vertical push into sports and media distribution while Kalshi counters with Interactive Brokers and hedge fund ties.

 

Galaxy Digital opens OTC prediction market desk with $10M Arca trade on Kalshi

 
Why this matters?
 

Galaxy's $10 million Clarity Act swap with Arca validates prediction markets as a liquid macro-hedging instrument for institutional balance sheets. Any follow-on trades will pressure competing broker-dealers to build similar OTC structuring capabilities or cede the institutional event-contract flow to Galaxy.

 
The bigger picture
 

Joins Wintermute and FalconX as the third crypto-native prime broker to build prediction-market infrastructure this quarter, confirming that institutional liquidity is migrating from retail order books toward bilateral OTC execution.

 

Polymarket voids $150M in Strategy bitcoin bets over delayed June 1 disclosure

 
Why this matters?
 

This forces Polymarket to rewrite its resolution guidelines for off-chain corporate disclosures within weeks, or watch whale traders abandon event contracts on SEC-filing companies. Any platform using self-reported data as an oracle now faces copycat disputes on every earnings-adjacent market.

 
The bigger picture
 

Brings the running tally of Polymarket payout or resolution disputes to at least four in under 72 hours, after twin retroactive rule-change fights and a governance revamp delayed by whale concentration, tightening scrutiny on its UMA oracle system as it faces six concurrent federal and journalistic probes.

The Resolution.
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