RE: [amibroker] H=L and V=0

["Graham" <gkavanagh@xxxxxxxxxxxxx>]

Sounds like your 
data you receive is padded, ie non traded days are included in the data as zero 
volume and the C = yesterdays close with o=h=l=c
This is common in 
Australia to use this form, but I don't know if used anywhere 
else.
 
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<B 
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>Cheers<SPAN 
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>Graham
<A 
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>http://groups.msn.com/ASXShareTrading
<A 
href=""><SPAN 
>http://groups.msn.com/FMSAustralia

  
  <FONT 
  face=Tahoma size=2>-----Original Message-----From: Al Venosa 
  [mailto:advenosa@xxxxxxxxxxxx] Sent: Friday, 4 July 2003 10:22 
  AMTo: amibroker@xxxxxxxxxxxxxxxSubject: [amibroker] H=L 
  and V=0
  Hi, everyone:
   
  Tonight, I thought I'd do a quickie exploration of a watchlist containing 
  almost 800 stocks (range setting on all quotations). I was interested in 
  finding out how many times the high was equal to the low or the volume equaled 
  0. I used the following exploration:
  Buy=Sell=Short=Cover=<FONT color=#ff6820 
  size=2>0;Error = H==L<FONT 
  face="Microsoft Sans Serif" size=2> OR V==<FONT 
  face="Microsoft Sans Serif" color=#ff6820 size=2>0<FONT 
  face="Microsoft Sans Serif" size=2>;<FONT color=#0000ff 
  size=2>AddColumn(H,<FONT color=#ff00ff 
  size=2>"H",<FONT color=#ff6820 
  size=2>1.2);<FONT color=#0000ff 
  size=2>AddColumn(L,<FONT color=#ff00ff 
  size=2>"L",<FONT color=#ff6820 
  size=2>1.2);<FONT face="Microsoft Sans Serif" 
  color=#0000ff size=2>AddColumn<FONT face="Microsoft Sans Serif" 
  size=2>(V,<FONT face="Microsoft Sans Serif" color=#ff00ff 
  size=2>"V",<FONT 
  face="Microsoft Sans Serif" color=#ff6820 size=2>1<FONT 
  face="Microsoft Sans Serif" size=2>);<FONT color=#0000ff 
  size=2>AddColumn(Error,<FONT color=#ff00ff 
  size=2>"Bad Price Patterns",<FONT color=#ff6820 
  size=2>1);<FONT face="Microsoft Sans Serif" 
  size=2>Filter=Error><FONT face="Microsoft Sans Serif" color=#ff6820 
  size=2>0;
   
  To my surprise, I found over 13,000 instances of H==L and almost 2,700 
  instances of V==0. On the days when V==0, the H and L were also equal. So, 
  those days were truly bad data (or non-trade) days. However, in the other 
  10,000+ instances when H==L, there was legitimate volume, sometimes high 
  volume. What does it mean when the price bars are all equal (O=H=L=C), yet 
  volume was finite? 
   
  Al Venosa
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