其實，他也早已違背了自己的rules.

來源: 於 2023-10-29 08:23:58 [舊帖] [給我悄悄話] 本文已被閱讀：次

my rule, after down to 20% lower, add double of share bought last time. If continue down, just wait, sell them at higher price. The sell price can be much lower than the buy price.