選擇權賣方策略討論 - 期貨

By Queena
at 2016-03-09T22:05
at 2016-03-09T22:05
Table of Contents
賣方是一個不錯的長期基本策略
不過似乎 做買方的人多一點
但我認識或知道的高手 都是以賣方為主
但上新聞爆炸的 也不少是賣方
可跟大家討論幾個觀點
賣方的勝率約>=7成 這是指你在任一個價外價位 sc或sp
的勝率,愈接近平價就大概6-7成,愈外價勝率愈高,可以高到9成以上
但賺的錢就愈少
這邊有幾個值得思考的地方
買方勝率就是賣方的相反也就是<=3成
有趣的是,如果你是做小台期貨,你任一買或賣出的勝率是多少?
剛好形成一個有趣的勝率位階
我覺得很多人都會有一個 "或許?" 錯誤的觀念
很多賣家喜歡 勒式遠價外雙賣 即用高勝率 去賺一點點小錢
然後因為賺的少,所以經常會買多口數 以提升賺的權利金
我認為這是會有爆掉風險的一種玩法
因為高勝率,賺的次數多,但賺的少。賠的數次很少,但一賠往往會賠比較多
然後你又是高口數,這樣就容易出現一次極大的虧損。
也許一年出現一次 就夠你受的。
我覺玩股票等相關金融商品 不能單純用勝率來衡量
應該是以期望值為主,即勝率x獲利
只要長期期望值為正的,勝率或獲利的一時的高低並不是最重要
有鑑於此,我認為勒式雙賣的新觀念
反而應該是接近平價才對。愈接近平價,勝率低一點
但所賺的權利金卻是最大值
如此你就不用一次買多口數,避掉一次爆炸的風險
雖然每次賠的金額會大於價外,但每次賺的金額也常會大於價外
整體來講,我認為,期望值或許會略大於價外勒式雙賣
又可以避免掉遠價雙賣多口數的風險。
網路上有個mrmarket 市場先生 有個選擇權模擬excel檔
我try過的結果大概是這樣。
以週選來講,我一直很想嘗試價平雙賣,這種無腦操作法的威力如何
有沒人有去計算過這樣的勝負如何?用過去data應該就可以跑些東西
只是我電腦程式很爛、又懶。
最後我認識的高手 指點我幾句
選擇權的玩法並不是最重要的,最重要的是能順著大盤的勢來買賣
我想他如果去玩大台,應該也會是常勝軍
順勢大家都知道,但實際該怎麼順,這我不能說。
我好像曾問過一個問題 假設某天指數上漲百點到 x100
在未來的若干天裡,他先碰到x200,還是x000的機率高?
如果拿過去資料來計算,機率是一樣的話,那我從此就不玩了
--
不過似乎 做買方的人多一點
但我認識或知道的高手 都是以賣方為主
但上新聞爆炸的 也不少是賣方
可跟大家討論幾個觀點
賣方的勝率約>=7成 這是指你在任一個價外價位 sc或sp
的勝率,愈接近平價就大概6-7成,愈外價勝率愈高,可以高到9成以上
但賺的錢就愈少
這邊有幾個值得思考的地方
買方勝率就是賣方的相反也就是<=3成
有趣的是,如果你是做小台期貨,你任一買或賣出的勝率是多少?
剛好形成一個有趣的勝率位階
我覺得很多人都會有一個 "或許?" 錯誤的觀念
很多賣家喜歡 勒式遠價外雙賣 即用高勝率 去賺一點點小錢
然後因為賺的少,所以經常會買多口數 以提升賺的權利金
我認為這是會有爆掉風險的一種玩法
因為高勝率,賺的次數多,但賺的少。賠的數次很少,但一賠往往會賠比較多
然後你又是高口數,這樣就容易出現一次極大的虧損。
也許一年出現一次 就夠你受的。
我覺玩股票等相關金融商品 不能單純用勝率來衡量
應該是以期望值為主,即勝率x獲利
只要長期期望值為正的,勝率或獲利的一時的高低並不是最重要
有鑑於此,我認為勒式雙賣的新觀念
反而應該是接近平價才對。愈接近平價,勝率低一點
但所賺的權利金卻是最大值
如此你就不用一次買多口數,避掉一次爆炸的風險
雖然每次賠的金額會大於價外,但每次賺的金額也常會大於價外
整體來講,我認為,期望值或許會略大於價外勒式雙賣
又可以避免掉遠價雙賣多口數的風險。
網路上有個mrmarket 市場先生 有個選擇權模擬excel檔
我try過的結果大概是這樣。
以週選來講,我一直很想嘗試價平雙賣,這種無腦操作法的威力如何
有沒人有去計算過這樣的勝負如何?用過去data應該就可以跑些東西
只是我電腦程式很爛、又懶。
最後我認識的高手 指點我幾句
選擇權的玩法並不是最重要的,最重要的是能順著大盤的勢來買賣
我想他如果去玩大台,應該也會是常勝軍
順勢大家都知道,但實際該怎麼順,這我不能說。
我好像曾問過一個問題 假設某天指數上漲百點到 x100
在未來的若干天裡,他先碰到x200,還是x000的機率高?
如果拿過去資料來計算,機率是一樣的話,那我從此就不玩了
--
Tags:
期貨
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