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Massachusetts securities division subpoenas Robinhood over prediction markets

Regulation

Massachusetts Secretary of the Commonwealth Bill Galvin’s office issued Robinhood a subpoena on 20 March as part of an investigation into its prediction markets hub. The Securities Division seeks documents and communications about the launch, including information on Massachusetts residents’ access to college sports contracts; Robinhood’s response deadline is 3 April.

The investigation may clarify how Massachusetts treats sports-event contracts offered through a brokerage platform.

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Polymarket US agrees to end Michigan sports contracts by 25 November

Polymarket US has agreed to stop offering new sports-related event contracts to Michigan customers and close residents’ remaining open positions by 25 November 2026, according to the report. A federal court approved the agreement, which the report says follows similar deals with Coinbase and Robinhood and a preliminary injunction against Kalshi.

Polymarket US will stop selling new event contracts related to sports to Michigan customers, and open positions held by residents of that state will be closed by November 25 2026. A federal court approved the agreement, which came after comparable deals with Coinbase and Robinhood and a preliminary injunction against Kalshi.

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