Robinhood has restricted GameStop (GME) share purchases following a dramatic surge in the stock's value, triggered by speculation that Keith Gill, known for the 2021 GameStop short squeeze, might hold a significant position. Blue Ocean ATS, the platform for overnight trades, will only accept orders within 20% above or below a reference price of $22.99. Orders to buy GME above $27.59 or sell below $18.39 during the night will likely be rejected. This restriction aims to allow limited trading during extended hours, but some Robinhood users reported being completely blocked from buying GameStop stocks overnight.