我們坐時光機，回到最衰時刻，最後一天都是最低點
: 1.ALL IN 0050
: 2.一半00631L，一半現金
: 4.加權報酬指數
時間訂在2020/05/18買進，2021/05/17賣出
1.0050，83.15買進，126.5賣出，股息3.75
報酬率(126.5-83.15+3.75)/83.15=56.64%
2.00631L，42.89買進，99.1賣出，全年定存利率1%
報酬率(99.1-42.89)/42.89=131.06%
合計(131.06%/2+1%/2)=66.03%
: 4.加權報酬指數
110/05/17 29,698.31
109/05/18 20,084.97
(29,698.31-20,084.97)/20,084.97=47.86%
簡單比較：2>1>4
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
時間訂在2019/03/20買進，2020/03/19賣出
1.0050，78.5買進，68.55賣出，股息3.6
報酬率(68.55-78.5+3.6)/78.5=-8.09%
2.00631L，36.75買進，26.4賣出，全年定存利率1%
報酬率(26.4-36.75)/36.75=-28.16%
合計(-28.16%/2+1%/2)=-13.58%
: 4.加權報酬指數
109/03/19 16,228.60
108/03/20 18,824.92
(16,228.60-18,824.92)/18,824.92=-13.79%
簡單比較：1>2>4
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
時間訂在2018/01/05買進，2019/01/04賣出
1.0050，83.75買進，72.2賣出，股息3
報酬率(72.2-83.75+3)/83.75=-10.21%
2.00631L，36.43買進，29.37賣出，全年定存利率1%
報酬率(29.37-36.43)/36.43=-19.38%
合計(-19.38%/2+1%/2)=-9.19%
: 4.加權報酬指數
108/01/04 16,739.23
107/01/05 18,640.70
(16,739.23-18,640.70)/18,640.70=-10.2
簡單比較：2>1>4