Performant Financial's significant beat on both earnings per share and sales estimates for Q4 2023, coupled with a substantial year-over-year growth, is likely to positively influence investor sentiment and the stock price in the short term. The company's performance exceeds analyst expectations, indicating strong operational efficiency and market demand for its services. This positive news is expected to attract investor attention and potentially lead to an increase in stock price as the market reacts to the better-than-expected results.