Catcher Predict: "Will the US and Iran cease fire before __?" "April 30" Winning rate plummets by 1%

According to Catcher Predict monitoring, in the event "Will the US and Iran ceasefire before __?" on the prediction market Polymarket, the "Yes" option's win probability in the sub-market "April 30" has experienced a sharp fluctuation, dropping from 34.5% an hour ago to the current 33.5% (a fluctuation of 1%). Please note the impact of related breaking news.