Bloomberg Wealth: Here Come the Teenage Stock Phenoms

Ah, youth. That sweet, sweet age of innocence when we discover the joys of a new driver’s license, a first love and exchange-traded fund investing.

Retail mania has reached teenagers. Last week, Fidelity Investments said it would give 13- to 17-year-olds not just debit cards and savings accounts, but also access to an investment service that would allow them to trade U.S.-listed stocks, Fidelity mutual funds and most ETFs. (With their parents’ supervision.)