To prepare for this enormous selling pressure, when share prices first start falling the fund managers doing the actual trading have to sell more shares than they would otherwise have done, and hold cash instead.
對實際操盤的基金經理人來說，為了因應龐大的贖回壓力，在跌勢初起時，就必須多賣股票、轉持現金，結果引發了誰都不願見到的「助跌」效應。