MOPCON
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    # 如何使我們的交易觀念更加清晰? - 王睿麒 {%hackmd MNcuRlXoQDak0uCmtaJKwA %} :::info 歡迎提問(匿名不需註冊, 沒回答完, 講者也會在共筆回答): 登入 https://app.sli.do/ 使用這個號碼進入本次分享的提問區: #5025 ::: > [本次簡報](https://docs.google.com/presentation/d/11F446gn4EAA5_ajaZN3znKBREBQnNOFi09VinpGv6oA/edit?usp=drivesdk) > [補充資料(簡報, 市場波動與資金管理)](https://docs.google.com/presentation/d/1o-tSWGh-a2JgPtHuMXWr4fT5KMUAK9CzaWqWDJnW5Ng/edit?usp=drivesdk) ## 如何使我們的交易觀念更加清晰 ### 清晰感 >拉出一條可評估的準則 >能用!能賺錢!能考慮! ### 1.甚麼是量化金融 >從波動率的角度思考 > 網路上就可以看到的我不想講~ > [name=王睿麒] **金融市場的成熟程度:波動和量的正相關程度** 越成熟: 穩定的交易量=穩定的流動性       =越多的金錢融通管道 / 發行更多衍生品 反之: 波動和量呈現高度負相關的話 流動性成本變高:不好管理風險 ==金融業在市場中的隱形成本=波動不給力!== - example: - 成長中的市場 - 要如何判斷有效市場: - 關鍵是價格波動 #### 波動觀點 - 歷史的波動率具有參考性,但仍舊不能解釋未來 - 隱含波動率是對未來波動的預期 - 波動叢聚:波動變大的時候,會持續一段時間  > 了解波動(短期、長期的規律)觀點,可以讓自己的操作方式更好(如:掛單) 誰是老大:**法律!** ### 2.量化分析常見的迷思 #### 常見迷思 - 想要預測,買低賣高 - 誤差問題:只要預期獲利超過交易成本(包含買賣價差/滑價/隔夜利息),就可以買進 > 就算真的預測到了價格,交易可能還是會有損失 > 預測,到實際交易,還是有很多因素要去考量 >  - 逆選擇問題 - 買低賣高 - 如何預測,優化各種先進數學模型 - 過擬合要表現出甚麼特徵?表現出甚麼問題? - 維度災難:模型 input 的資料太多,資料量多到很難 training - 用甚麼來預測? 大量近期的資料 #### 病態曲率 > 問題:延遲現象 類神經網路的頻譜偏差 > 問題:為甚麼不易過擬合( 為何Training那麼久? ) 優先擬合低頻資料 樣本中的高頻部分逼近存在理論極限 ### 3.金融市場的交易機制 - 價格的變動 - 集中交易+搓合交易:優先使用現在交易的價格 > 金融市場的波動,不是只有價格才會波動,**很大量交易**的時候也會有波動 - 市場是有限深度時,買賣價差小 - ![](https://i.imgur.com/PYB9m5J.png) ### 4.交易策略的評估方法 > PTT Trading版/ 作者rcwang,可以參考相關文章 - [Re: [問題] 新手程式交易回測與交易請益](https://www.ptt.cc/bbs/Trading/M.1538318192.A.FBC.html) - 衡量指標 ![](https://i.imgur.com/yqfiACB.png) - [MAE/MFE](https://www.youtube.com/c/maemfe ) > 遇到波動大,可以選擇延遲進場 ### 5.以波動為中心的交易思維 > 20%方向風險,80%非方向風險 ###### tags: `MOPCON 2019`

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