The popular travel platform's shares have underperformed the market in 2025.Airbnb (ABNB +0.07%) is one of the leading faces of the gig economy era, leveraging the advent of the internet to become a major tech enterprise. The business has been performing well, posting solid growth and profits. However, shares have climbed only 5% this year (as of Dec. 22), losing to the S&P 500's 18% total return. Investors in this top travel stock need to pay attention to some key trends in 2026. Focus on Airbnb's economic ...