short selling

Entrance to the US Securities and Exchange Commission shows emblem on building

As the SEC investigates social media posts for GameStop manipulation, UNSW Business School's Mark Humphery-Jenner says it is important to remember that market manipulation is illegal.

Woman working online with multiple computer screens examines stock index charts

Short selling is a crucial part of markets and regulators must examine the real impact of short selling on market efficiency before trying to restrict it, says UNSW Business School's Mark Humphery-Jenner.

A person goes into a corner GameStop store as someone walks past

Normally on the stock market, the shark swallows the little fish. Now the little fish are eating the shark as small investors force hedge fund players into uncomfortable positions.