The suggestion from the high-expense ratio sample is that the hypo-thetical copycat funds can track actively managed funds for up to six months after portfolio disclosures.

• 对高支出率基金样本的分析结果表明，在积极管理的基金披露其投资组合后六个月内，虚拟的跟风基金的确能模仿积极管理的基金。