Financial results and revenue guidance are critical factors in assessing a company's performance and future prospects. When these figures fall below market expectations, it often leads to a negative reaction in the stock price as investors adjust their expectations for future profitability and growth. Compass Minerals Intl's announcement of disappointing Q2 results and lower-than-expected FY24 revenue guidance directly impacts investor sentiment and the perceived value of the company, leading to a decrease in stock price.