A trader buying and selling stocks using his tablet 0Archiv

A trader holding a smartphone with an empty screen over the stock market live graphs 0Archiv

GameStop share price surges 0Archiv

Robinhood financial investing app on a mobile device 0Archiv

Tesla faces new reality of tough competition 0Archiv

Tesla shares surge 0Archiv

Tesla stock sinks as market gains 0Archiv

The Wall Street Journal logo under magnifying glass 0Archiv

J.P. Morgan logo under magnifying glass 0Archiv

The Wall Street Journal logo on a computer screen with a magnifying glass 0Archiv