Very Misleading,單一入場時間點選擇性偏差。更準確的方法是用DCA的多個入場時間點。舉例。。
QQQ 單一入場點投資:6/30/2000 ~ 6/30/2023, Annualized return= 6.94%
QQQ 單一入場點投資:6/30/2003 ~ 6/30/2023, Annualized return= 14.2% (晚三年投資,差別高達每年7.26%)
QQQ DCA多個入場點投資:6/30/2000 ~ 6/30/2023, Annualized return= 14.4%
QQQ DCA多個入場點投資:6/30/2003 ~ 6/30/2023, Annualized return= 15.8% (差別每年1.4%)
結論:花街擅長於玩弄報表數據,不要take it at its face value.