butterflyjoan

早晨....
Ching 門... 對 short selling over 14% 有 mug 見解 nei...  

fatpat

引用:

原帖由 goldwater 於 2013-10-25 16:46 發表
223〜231範圍內都有錢執，睇環境結算前破呢D位機會不大，最後仍一句，世事無絶對，小心駛得萬年船。

有400點，一半係時間值，玩至星期一都幾唔錯

Half of 400pts is 200pts, should the BE be (226 - 200) & (228 + 200),
or win range 224 - 230

fatpat

引用:

原帖由 goldwater 於 2013-10-26 06:43 發表
從另一角度睇，此三千多張226LC ，只是後著，＂鎖定利潤＂，就似乎合理一點！

fatpat

引用:

原帖由 fatpat 於 2013-10-24 15:24 發表


Total Margin for both side assume  

Total Margin for both side assume <$20000, I think it should be 376 x $50 = $18800

                    18     21     22     23     24     25
Oct SP226   50 /   30 /   26 /   66 /   95 /   97
Nov LP226 214 / 176 / 180 / 278 / 342 / 383

Oct SC236   88 /   89 /   68 /   20 /     7 /     2
Nov LC236 300 / 308 / 280 / 186 / 132 /   96

                   376 / 365 / 366 / 378 / 372 / 380

Win 4pts as of today

If swing up & down big, IV goes up, next week next month premium goes up.

If close within 226 - 236, front month (Oct) premium goes to 0, so profit
from Oct time premium, ~100pts.

Let's see whether this combination can really win something next week.

P.S. If down break 226, front month delta will rise faster and approaching 1,
       next month delta rise slowly from 0.5, so eat into profit quickly.

fatpat

Oh after a week, the combination still win almost nothing,
maybe it would be a better time to open yesterday instead of
the Friday before, if really doing both side

Let's see how it would look

Assume using C Hing target closing within 224 - 230,

                        25
Oct SP224     43
Nov SC224 302

Oct SC230    30
Nov LC230 256

                      485

Assume cost 485pts, margin 485 * $50 = $24250
a lot higher cost due to narrower range.

mon219

引用:

原帖由 goldwater 於 2013-10-26 06:43 發表
從另一角度睇，此三千多張226LC ，只是後著，＂鎖定利潤＂，就似乎合理一點！

對！師兄這論點最正確！早前的put價賤到暈！買了大量234下的put就用226C鎖利潤，我手上就有張138點買的234P，昨日亦買了228C鎖好，再跌利潤加大，回上也不損失，不平倉理由是可以搏更大利潤

fatpat

引用:

原帖由 mon219 於 2013-10-26 10:40 發表
對！師兄這論點最正確！早前的put價賤到暈！買了大量234下的put就用226C鎖利潤，我手上就有張138點買的234P，昨日亦買了228C鎖好，再跌利潤加大，回上也不損失，不平倉理由是可以搏更大利潤 ...

Why not using a SP to lock profit

Unless you think the market will have a big drop coming week,
then it is better to close the LP,
otherwise I'd prefer a SP228, which  would give you around extra 100pts profit,
and some upside protection up to 229

P.S. 228P should have more time premium that 234P,
       so a better choice to lock profit with extra profit / upside protection.

[ 本帖最後由 fatpat 於 2013-10-26 11:15 編輯 ]

cowbearcar

將呢幾日跌浪做黃金分割，
數字會係：
23535
23178   61.8%
23068   50%
22958   38.2%
22822   23.6%
22602

所以如果週一開市企得穩 22822後，就有明確目標去做了！

p.s. 在Sptrader裏隨手拉的約數，可能有幾點誤差。

mon219

沽pur是鎖死了倉位置！無錯！沽回點數是不錯的選擇，但再跌利潤空間就被鎖死了，現在本金就只兩百點多些，位置鎖了600點減去成本都有400穩賺而又可搏更大的利潤何樂而不為？而沽有限只能保到229左右再上利潤就減退了，選擇買做法好過沽

[ 本帖最後由 mon219 於 2013-10-26 11:26 編輯 ]

cowbearcar

引用:

原帖由 fatpat 於 2013-10-26 11:13 發表
Why not using a SP to lock profit

Unless you think the market will have a big drop coming week,
then it is better to close the LP,
otherwise I'd prefer a SP228, which  would give you around extra 100pts profit,
and some upside protection up to 229

P.S. 228P should have more time premium that 234P,
       so a better choice to lock profit with extra profit / upside protection.

佢咁樣可以博更大利潤，佢已經講佐……
萬一玩野插多一千點，鎖住利潤於你無益，只是保你無事。
可是佢就可以收穫更豐富，其實比傳統策略更進取！