The expansion of AAR's contract with ASL Aviation is likely to have a positive impact on the company's future revenues and profitability, which could be reflected in the stock price. The deal enhances AAR's service footprint and customer base in the aviation industry. Although the financial details were not disclosed, the increase in the number of aircraft under support from 28 to 65 suggests a significant expansion of services. However, the stock was trading slightly lower, which could indicate that the market has not fully absorbed the news or there are other factors influencing the stock price.