Raising operating cash flow guidance typically reflects a company's confidence in its ability to generate more cash from its operations. This is often viewed positively by investors as it suggests improved financial health and potentially more funds for dividends, debt reduction, or reinvestment. Given that this news is directly about Constellation Brands' financial outlook, it is highly relevant and important to investors. The confidence score is high because such guidance updates are material events that usually have a clear impact on investor sentiment and stock price.