Bitcoin ETF doesn't get approval by Jan 15?$BTC price <$40,000 1 hour after ETF approval?$BTC price >$50,000 1 hour after ETF approval?$BTC price between $42,500-45,000 1 hour after ETF approval?$BTC price between $47,500-50,000 1 hour after ETF approval?$BTC price between $45,000-47,500 1 hour after ETF approval?$BTC price between $40,000-42,500 1 hour after ETF approval?Polymarket uses a central limit order book (CLOB) model โ you can buy or sell shares of any outcome at the current market price, or place limit orders. Prices represent implied probability: a $0.65 contract means the market prices a 65% chance of that outcome.