[ dings ] ♪ [ male announcer ] every thought... every movement... ♪ ...carefully planned, coordinated and synchronized. ♪ performing together with a single, united purpose. ♪ that's what makes the world's leading airline... flyer friendly. ♪ became big business overnight? ♪ like, really big... then expanded? ♪ or their new product tanked? ♪ or not? what if they embrace new technology instead? ♪ imagine a company's future with the future of trading. company profile. a research tool on thinkorswim. from td ameritrade.