稳赚不赔的买卖

先别看标题就骂我，看数据
目前时间： 2021-09-10 13：46 EST
IRNT：$19.00
IRNT211119C19000 ($19 CALL 11/19)   $2.10/2.55 
IRNT211119P12500 ($12.5 PUT 11/19) $3.1/4.0 
IRNT211119C5000   ($5 CALL 11/19) $13.7/14.40 
策略 SELL C5000 @13.7,  BUY C19000@2.55  , SELL P12500@3.1 
一共获得： $14.25， 

到11/19 ，如果股价大于P>19，  至少获利  $14.25 - (19-5)= 0.25 
12.5<P<19 , 获利   0.25<$14.25 - ( P-5) < 6.75
如果股价小于12.5, 大于5 ， 获利 $14.25 - (12.5-5)= 6.75

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