Delta Air Lines' stock has risen 13% over the last 6 months, with some outlets suggesting the stock could continue to move upward in 2026. The company's stock performance is part of a broader market rebound, with the Dow recently surpassing 50,000 for the first time, led in part by gains in tech and airline stocks. Delta's rising costs, including a significant increase in its fuel bill, may be a factor in the company's outlook, but its premium cabin strategy is seen as a potential target for growth.