WSJ Tech News Briefing · Wednesday, August 12, 2026
The New York City Council is investigating four prediction market platforms: Polymarket, Kalshi, Coinbase, and Gemini Titan. The council is examining allegations of deceptive marketing practices and targeting of minors, seeking details on user numbers and marketing strategies within the city. Specific attention is being paid to Polymarket's promotional videos that reportedly depicted fake trades and promoted insider trading.
“The New York City Council is investigating four prediction markets.”
“Polymarket, Kalshi, Coinbase and Gemini Titan for alleged deceptive marketing practices and targeting minors.”
“A Coinbase spokesperson said the company fully complies with applicable laws.”