MSI Net, Inc. & mCloudServ

Robinhood eases trading restrictions on GameStop, AMC, Express, and some other stocks; users can now buy four shares of GameStop, up from one (Maggie Fitzgerald/CNBC)

Maggie Fitzgerald / CNBC:

Robinhood eases trading restrictions on GameStop, AMC, Express, and some other stocks; users can now buy four shares of GameStop, up from one  —  Robinhood started easing trading restrictions on Monday, raising its trading limit on GameStop to four shares from a single share.