https://www.theguardian.com/business/2021/jan/29/robinhood-to-restore-gamestop-trading-as-it-wins-1bn-backing > App helping to fuel share-buying frenzy allows ‘limited buys’ after a $1bn cash injection to safeguard trades > Shares in companies including videogame retailer GameStop soared again on Friday, as an army of small investors taking aim at Wall Street regained access to amateur share trading platform Robinhood.