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 CPI year-over-year is exactly 3.5% in May 2026, then the market resolves to Yes.
As of March 17, 2026, the Kalshi odds for CPI year-over-year in May 2026? are: Exactly 3.2%: 19%, Exactly 2.9%: 10%, Exactly 3.4%: 10%, Exactly 3.3%: 9%, Exactly 3.5%: 8%. These probabilities are derived from real-money trading and update in real time.
CPI year-over-year in May 2026? 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.
