Wall Street analyst has a blunt warning on surging stock [https://www.thestreet.com/.image/t_share/MjE2NTAxMDc3NjAyNzM5NzMx/gettyimages-2224505393.jpg] Wall Street analyst has a blunt warning on surging stock Circle stock tumbles after downgrade as analysts warn of overvaluation, rate risks, and rising competition. [https://www.thestreet.com/crypto/markets/wall-street-analyst-blunt-warning-surging-stock]