Tax-loss sales can depress stocks in mid-December especially small stocks that are thinly traded .

税 损 卖盘会在12月中旬 时 给股市 带来 压力，尤其是交投清淡的小型股。

But by Christmas most people have finished their tax-loss selling .

但到圣诞节时，大多数人都完成了 税 损 卖盘。