... speculate on a fall 做空头投机 speculate on a rise 做多头投机 because it is unpredictable 因为它的高深漠测, ...
基于4个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
Out-of-the-money puts on the index are generally more expensive than equally OTM calls because more investors want to protect their stock portfolios on the downside by buying puts than tend to speculate on a rise in the index.
FORBES: Weight the Options
应用推荐
模块上移
模块下移
不移动