Will Seattle win the 2026 Pro Baseball American League Championship?
Prediction markets currently give a 17% probability that Will Seattle win the 2026 Pro Baseball American League Championship?. This contract trades at 17¢ on Kalshi, closing October 31, 2028. The 17¢ price reflects a modest 17% probability for Seattle's AL pennant win, yet the Yes side offers an extreme 192% annualized yield, suggesting significant underpricing relative to the Mariners' historical competitiveness or market expectations.
Analysis
The 17¢ price reflects a modest 17% probability for Seattle's AL pennant win, yet the Yes side offers an extreme 192% annualized yield, suggesting significant underpricing relative to the Mariners' historical competitiveness or market expectations. The 853% realized volatility and 6.45 vol ratio indicate extreme price swings despite moderate $1.6k daily volume, with the market showing a recent 2¢ decline over seven days that may signal shifting sentiment or thin liquidity effects. With nearly 2.5 years until October 2028 expiry and a Cliff Risk Index of 5, this contract carries substantial uncertainty around team performance, injuries, and trades—making the high yield potentially compensatory for execution risk rather than a pure arbitrage opportunity.
Resolution rules
If Seattle win the 2026 Pro Baseball American League Championship, then the market resolves to Yes.
Indicators
Regime
Trade
sf trade KXMLBAL-26-SEA yes 100