现在short Jan 500 put,long Feb 500 put的价格是debit12.1, risk 1210。
在下俩个星期内,只要aapl 股价touch 大概510左右 (touch 510 的概率是 63%), 因为股价下降volitity expanding,let's assume vol increase by 8%, 就可以take profit $500 (based on 1 option) on next fri jan 11
再加上以下,我觉得赢率会到85%
1.aapl report earning after Jan option exp date which is Jan 18, so 买的 Feb 500 put 不会跌到那里去
2.大盘2,3个trading day涨了这么多, 很大几率回调补gap
3.aapl/nq 弱于es, tf...
4. 这strategy唯一可能输的可能是: appl go up from 527, 绝尘而去。。。
新人发帖,请dl们指教, 谢谢。作者: aimei 时间: 2013-1-5 12:49
本帖最后由 aimei 于 2013-1-5 12:54 编辑
option 专家说说那作者: aimei 时间: 2013-1-5 12:54
As I know, a calendar spread is only profitable if the stock price at the options expiration date is within fairly narrow range, eg <15%.作者: not4weak 时间: 2013-1-5 13:38