[問題] Cash-secured-put vs Covered-call

看板Option作者 (一期一會)時間11年前 (2013/04/11 11:25), 編輯推噓3(303)
留言6則, 3人參與, 最新討論串1/1
理論上,Cash-secured-put 跟 Covered-call 在Strike point跟expiration date相同且無配息下 是Identical的。 而Strike point在put如果是價外,在call就會是價內,反之亦然。 從而如果你願意賣出價外的Cash-secured-put 那麼你就應該願意賣出同Strike的價內的Covered-call 然而我一直難以說服自己這麼做是合理的... 不管put或call,我都還是都賣價外。 想請問,有人能開示一下我想法的矛盾嗎? -- You got to know when to hold 'em, know when to fold 'em, Know when to walk away and know when to run. You never count your money when you're sittin' at the table. There'll be time enough for countin' when the dealin's done. 'Cause ev'ry hand's a winner and ev'ry hand's a loser, And the best that you can hope for is to die in your sleep." now Ev'ry gambler knows that the secret to survivin' Is knowin' what to throw away and knowing what to keep. -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.112.125.216

04/11 11:37, , 1F
如果你搞清楚賣價外CP是要賺甚麼?那反過來賣價內不也一樣!
04/11 11:37, 1F

04/11 11:38, , 2F
Put-Call parity
04/11 11:38, 2F

04/11 12:28, , 3F
同樣的東西,只是表示方法不同
04/11 12:28, 3F

04/11 12:29, , 4F
或許想成一個漢堡 等於60塊台幣或兩塊美金
04/11 12:29, 4F

04/11 13:19, , 5F
賣價內稅金比較貴...還有流動性比較差 快市危險
04/11 13:19, 5F

04/11 13:20, , 6F
在數學上當然是等價 但是實際交易起來會有操作問題
04/11 13:20, 6F
文章代碼(AID): #1HPYqoY4 (Option)