Catcher Predict: "When will the U.S. military enter Iran?" "December 31" Winning rate plummets 1

According to monitoring by Catcher Predict, in the event "When will the U.S. military enter Iran?" on the prediction market Polymarket, the "Yes" option in the sub-market "December 31" experienced a sharp fluctuation in winning probability, dropping from 75.5% an hour ago to the current 74.5% (a fluctuation of 1%). Please note the impact of related breaking news.