Kellogg's better-than-expected Q1 2024 earnings and sales figures are likely to positively impact investor sentiment and the stock price in the short term. The significant beat on both the EPS and sales estimates indicates operational efficiency and market strength, despite the noted year-over-year sales decline. This mixed result, with a strong performance against estimates but a decrease in sales compared to the previous year, suggests a nuanced but overall positive outlook for Kellogg's stock.