有關逐筆交易的撮合 - 股票

By Ethan
at 2019-04-02T20:19
at 2019-04-02T20:19
Table of Contents
目前對逐筆交易仍然非常不熟,明年就要上路了感到非常惶恐
上網查逐筆交易的意思是,只要一有委託單進來,同時有符合價格的買賣相對方委託,馬上就撮合成交
http://i.imgur.com/elu5UyI.jpg
圖中是台指期的分筆明細,有一筆的成交單量是8口(綠字)
假設有4個人A, B, C, D ,以下哪幾種狀況可符合這筆資料?
1. A買進10口,B賣出8口
2. A買進8口,B賣出10口
3. A買進8口,B賣出3口,C賣出5口
4. A買進3口,B買進5口,C賣出8口
5. A買進3口,B買進5口,C賣出4口,D賣出4口
請作答!
另外還有一個問題是買賣雙方只要有match到就立刻成交了,那為何還有內外盤的差異?
從此圖看起來好像也不是成交價格往上跳就是紅字,成交價格往下跳就是綠字
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