同时持有多单和空单

昨天在kitco论坛看到关于黄金操作的如下对话：

Frank:
Or we can play the following way, it may sound stupid but may not.
At this 810 level, you can hold 2 positions of both long and short and take profit and average when it moves one direction.
Scenerios 1
Long 810 and short 810.
If go 780 take the short profit and close, add one long at 780.
If go 830 take the long porfit and close, add one more short at 830.

peapie32:
Originally Posted by Frank View Post
>>At this 810 level, you can hold 2 positions of both long and short and take profit and average when it moves one direction.
>>Scenerios 1
>>Long 810 and short 810.
>>If go 780 take the short profit and close, add one long at 780.
>>If go 830 take the long porfit and close, add one more short at 830.
Actually it's really not that bad of a strategy & has a pretty low risk of losing everything especially if your on margin. I had a very lengthy talk with my broker about this because I have several long positions that I am holding onto, and going short would prevent me from having to put up more margin if it drops below 800. It's kind of like an insurance policy for your long positions.

这种操作的好处是：
1。相对低风险的参与了市场。适用于盘整的时候，当价格到达阻力位就平掉多单，到达支撑位时平掉空单，如果趋势明朗了，可以相应平掉反向的单并追加同向的单。
2。不容易被爆仓。