Given UNFI's mixed past earnings performance and the market's sensitivity to both earnings outcomes and forward guidance, the short-term impact on UNFI's stock price is uncertain. While a beat on the expected EPS could positively influence the stock, the guidance provided will likely play a crucial role in determining the stock's direction. Historical data indicates that the stock reacts to both earnings outcomes and future outlooks, making it difficult to predict the short-term movement without knowing the actual results and guidance.