现金流水账上会显示:
+$20 (红利)
-$20 (买MMK fund 用掉),同时MMK fund 显示 +20 shares
注意,MMK fund price 基本维持在 $1 per share。你原来有 10,000 shares, 现在花$20又买了20 shares, 所以:
现金balance = 0 + 20 - 20 = 0 $
MMK share balance = 10,000 + 20 = 10,020 shares, 值 10,020 shares x $1 / share = $10,020