typically the lender has the right to recall the shares at their choosing, and the holder can continue to hold as long as their collateral is sufficient to meet margin requirements (they can cover the paper loss/new cost of the shares they need to buy back), so it doesn't necessarily mean all shorts will cover, but if there is an upward trajectory then most holding short will start to close before the positions get too ugly.
SLX Price at posting:
$3.99 Sentiment: Buy Disclosure: Held
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