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Okay, sure, so then block the entire stock for a while. What they did was block one side. They blocked people from buying but only allowed selling. Imagine all the market sells after that tanking the price.

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In fairness, you can close out your positions if you are long or short. If you are shorting the stock, you are allowed to buy to close the position.

Right, I went long by buying to close my short leg on spreads, holding the long leg.

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