Popular investment platform Fidelity felt the ire of Reddit traders after mistakenly listing millions of GameStop shares available to short on Tuesday. Traders on Reddit accused Fidelity of causing a 3% decline in GameStop's stock price during Tuesday's session, with one angry poster calling it a '$2.2 billion oopsie'. Fidelity has since apologized via its social media accounts and has returned the number of shares to the correct figure on its platform.