Air Lease Corporation (NYSE: AL) saw its stock plummet 5.26% in after-hours trading on Monday, despite reporting a 9.7% increase in revenue and a substantial surge in net income for the second quarter of 2025. The aircraft leasing company's financial results, while showing growth, appeared to fall short of some market expectations.

For Q2 2025, Air Lease reported revenues of $731.7 million, up from $667.3 million in the same period last year. Net income attributable to common stockholders soared to $374 million, or $3.33 per diluted share, compared to $90.4 million in the previous year. The company's adjusted earnings per share came in at $1.40, missing the analyst consensus estimate of $1.69 by 17.21%.

A significant factor in the quarter's results was a $344 million insurance claim settlement related to Air Lease's former Russian fleet. While this boosted the company's bottom line, investors may be concerned about the sustainability of such one-time gains. Additionally, despite the revenue growth, the market's reaction suggests that expectations were set higher, particularly in light of the robust demand for aircraft that the company noted in its report.

Air Lease's CEO, John L. Plueger, stated that demand for aircraft remains strong, supporting the company's margin expansion outlook. However, the after-hours stock drop indicates that investors may be focusing on the adjusted earnings miss and potential challenges in the competitive aircraft leasing market moving forward.