空头头寸（bear covering/Short Position） 空头头寸 ：由卖出空头而产生的投资头寸。由于此头寸尚未被冲销，因此可从市场价格下跌中获利。即投资者因预料价格会下跌提前提出卖出价格大笔卖出或者使卖出大于买入的行为
此外，投资者正解除空头头寸，意味着他们需要回购早先卖出的股票。
They are also unwinding short positions, which means buying back stock they sold earlier.
共同基金多年来模仿对冲基金，股份方面提供如多头和空头头寸的“选择”策略。
MUTUAL funds have mimicked hedge funds for years, offering "alternative" strategies such as taking long and short positions on shares.
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