I usually have long and short
来源:
uptrend
于
2005-10-24 14:16:59
[
旧帖
] [
给我悄悄话
] 本文已被阅读:次
positions at the same time. The percentage and sector of long and short varies with market condition.
I do not have to unload and reload everything. There is no point to do that.