The higher the short interest and SIR, the greater
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Short covering is generally responsible for the initial stages of a rally after a prolonged bear market or a protracted decline in a stock. Short sellers usually have a shorter trading horizon than investors with long positions. This is due to the risk of runaway losses on a short squeeze, so they are quick to cover their short positions on any signs of a turnaround in market sentiment or a stock’s fortunes.
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