Polymarket odds are set by real traders putting real money behind their beliefs. With $71K traded on “Bitcoin Up or Down – February 21, 8:00AM-8:05AM ET,” the Up/Down probabilities reflect the collective judgment of traders watching Bitcoin‘s live price in real time. For 5-minute markets like this one, the odds represent an instantaneous crowd consensus on Bitcoin‘s price momentum — most meaningful as the window approaches its close, when traders have the most current price information available. For the latest stats on Polymarket’s overall prediction accuracy, visit the accuracy page on Polymarket.
