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Coinbase launches ultra-short-term betting market: will bitcoin rise or fall in 15 minutes

Coinbase launched an ultra-short-term price prediction market for U.S. users covering 10 cryptocurrencies including bitcoin and ether. The contracts let users predict whether prices will rise or fall over 15-minute or 1-hour intervals. Coinbase CEO Brian Armstrong announced the launch, saying users can choose the asset, time window and direction. The market is operated by Kalshi under U.S. CFTC regulation, with Coinbase Financial Markets providing the contracts.