Quote:
Originally Posted by Hemi-Cuda
Even without that, Robinhood did prevent buying of GME shortly after Citadel took a high stake into GME. And if you believe their reasoning of reacting to market volatility, then why didn't they also lock selling like you would expect? Only doing one or the other is them clearly trying to manipulate a particular stock to move in a direction they want
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Ignoring the dubiously supported claims of the article you posted, your theory does not explain why other firms also halted purchases. Citadel bought them too? The answer is liquidity and risk management. And the reason they didn't shut down sell trades, is because those would reduce their exposure, and therefore their risk.
One thing that needs to be understood here: risk exposures aren't just something that brokerages 'deal with', they are regulated. And they are limited. And if you are offside, or beyond your limits, you have to square up that day. It isn't like your personal finances where you say 'honey, we're a little stretched this month, we need to cut back on the entertainment budget'. It is immediate reconciliation.
And when their limits are tested, they have to limit activities.
It isn't the boogeyman, it's regulation.