三大法人成交比重的計算方法 - 股票
![Olivia avatar](/img/cat2.jpg)
By Olivia
at 2008-02-12T17:26
at 2008-02-12T17:26
Table of Contents
因為太多人問了,三不五時就有人用推文or來信問
所以乾脆在版上po這篇文章說明一下
我常會在po三大法人買賣超的時候,遇到特別的狀況
就會寫出三大法人進出佔大盤成交比重,比如今天是47.1%
1.其實這個東西是我自己每天計算的,一般看盤軟體是沒有的
2.既然看盤軟體或網站都沒有,就更不會有什麼趨勢圖表了(別再找我要了)
3.我通常是用剛收完盤的成交量當做計算基準,所以不含盤後交易
4.三大法人=外資+投信+自營商 (各別的定義請自行爬文)
5.算法:
(三大法人合計買進金額+賣出金額)÷大盤成交金額÷2
6.例如:
2008/2/12 (511.83+558.53)÷1136.34÷2 = 47.1%
7.很多人都問我,後面幹麻除以二?
因為市場成交金額=市場總買進金額=市場總賣出金額
所以(買進+賣出)÷2=成交量
好比整個市場就只有你用五元跟我買一個蘋果,你用五元買、我用五元賣
那成交金額是多少?是五元啊!因為從頭到尾就只出現一個五元硬幣而已
8.根據長期的計算和觀察,以前有一段時間成交比重都在20%~25%之間
後來變成落於25%~30%之間,這幾個月則都在30%附近
所以今天47.1%顯得比較特別,才會po出來給大家看
9.如果不是外資放假或是農曆年散戶提早離市之類的狀況下,
成交比重出現異常,就得多注意一下大盤的變動
比如說融資有沒有減~~散戶是不是離場啦~~法人是不是大舉低接或倒貨之類的
至於要注意什麼、怎麼注意,請憑個人經驗與功力,就不用問我了
因為這些東西很抽象,沒有絕對的意義,只是給你多一份參考罷了
10.如果版主不嫌棄就請把這篇m起來或收錄於精華區吧~~
然後拜託新手以後要多爬文,謝謝大家
--
1. 我不是營業員!!!!!
2. 是「券」不是"卷"!!!!
3. 新手發問前請爬文!!!!
--
Tags:
股票
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