Polymarket launches 15-minute BTC 'Up/Down' prediction trading in U.S. app

September 28, 2026, 4:11 PM

Polymarket announced the launch of “Up/Down” trading in its U.S. app, allowing users to bet on whether BTC will finish each 15-minute interval above or below its starting price. The product is a prediction market contract tied to price direction rather than standard BTC spot or futures trading.

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