Polymarket$2.32BOIOpen interest: sum of pool liquidity across all active markets, reported by the Polymarket API.
Kalshi$350.67MOIOpen interest: total contracts outstanding across all active markets, reported by the Kalshi API.
Limitless$18.48MOIOpen interest: estimated from total volume traded (USDC). Limitless does not report a separate OI metric.
Updated Today
If the simple average of the sixty seconds of CF Benchmarks' BRTI before 12 AM EST is below 20000.00 at 12 AM EST on Jan 1, 2027, then the market resolves to Yes.
As of March 17, 2026, the Kalshi odds for BTC price on Jan 1, 2027? are: 65,000 to 69,999.99: 10%, 70,000 to 74,999.99: 10%, 60,000 to 64,999.99: 9%, 75,000 to 79,999.99: 9%, 55,000 to 59,999.99: 8%. These probabilities are derived from real-money trading and update in real time.
BTC price on Jan 1, 2027? is currently available on Kalshi. Check PredictMarketCap for cross-platform availability as new markets are added regularly.
Prediction market odds reflect the aggregate opinion of traders who risk real money on outcomes. The price of a share (e.g., 65¢) represents the market's implied probability (65%). Prices move as traders buy and sell based on new information, polls, and analysis.
