The tentative agreement between Allegiant and the Transport Workers Union is likely to have a positive short-term impact on ALGT's stock. Labor agreements can lead to improved employee satisfaction and productivity, which in turn can enhance operational efficiency and customer service. The announcement of such an agreement, especially one that includes significant wage increases and benefits enhancements, can be viewed positively by investors as it reduces the risk of labor disputes and potential disruptions to operations. However, the need for ratification adds a layer of uncertainty, hence the confidence score is not at the maximum.