The Trade Desk is riding on three megatrends that will define its next decade. The Trade Desk (TTD -0.45%) is going through a testing time. Slower growth, a sudden CFO change, and intensifying competition have spooked investors. But while short-term sentiment is bruised, the long-term growth story hasn't disappeared. The next decade could offer The Trade Desk some of its strongest tailwinds yet. The rise of the internet has brought new opportunities, while disrupting many old business models. One of the mos ...