The Federal Reserve's FOMC meeting on December 10 may trigger a dramatic shock in the stock market. In recent weeks, Fed officials have been sending mixed signals: Powell hinted in October that it was uncertain whether there would be a rate cut in December, while New York Fed President Williams said last Friday that there was room for a cut. This has led to extreme chaos in the market—futures traders' expectations for a rate cut in December plummeted from 98.1% to 44.4% in just a few weeks, and now they have rebounded to 71.4%. This wild swing indicates that Wall Street really doesn't know what the Fed will do. If a rate cut is announced on December 10, the stock market will likely go to da moon; if there is no change, the index may plummet. This wave of uncertainty means that the market pricing has not fully reflected the Fed's decision, and retail investors should fasten their seatbelts.