There aren't many businesses that have disrupted entire categories to the point that their name has become a verb. But that is precisely what Airbnb (ABNB -4.74%) has accomplished. The alternative accommodations platform hasn't worked out well for investors, though. While its market cap is in the neighborhood of $87 billion, the stock has climbed just 2% this year and trades 36% below the peak it reached in February 2021. You might be thinking about adding this growth stock to your portfolio on that weaknes ...