Polymarket$3.40BOIOpen interest: sum of pool liquidity across all active markets, reported by the Polymarket API.
Kalshi$391.98MOIOpen interest: total contracts outstanding across all active markets, reported by the Kalshi API.
Limitless$27.79MOIOpen interest: estimated from total volume traded (USDC). Limitless does not report a separate OI metric.
Updated Today
As of March 18, 2026, the Polymarket odds for Apple (AAPL) closes week of Mar 16 at ___? are: $250-$255: 39%, $245-$250: 26%, $255-$260: 19%, $240-$245: 9%, $260-$265: 4%. These probabilities are derived from real-money trading and update in real time.
Apple (AAPL) closes week of Mar 16 at ___? is currently available on Polymarket. 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.
