[pcabc]

Comparison of breadth based on my, Pcabc's initial pool of crypto's and Isatrader's larger pool

Given that Isatrader has been basing his breadth on a wider pool of crypto currencies than I used for my breadth calculations, and that he posted his pool consituents, I have calculated breadth based on his pool to see what differences there are.  I've not quite replicated his pool as there are a few cryptos for which I do not have data.

Breadth based on my and Isa's pools side by side:
       

The differences are not major, but they are there.  To make it more obvious I have overlaid the charts:
   

Here you an see both curves are double.  Their shapes are quite similar, in general, but they are not quite the same.  Using my scoring system this would result in differences in breadth scores and timings, not much, but a little different.  I plot the outcome of my breadth scoring system as a bar jut below the index plot, and also at the bottom.  Here are both bars plotted one against the other.  In my system green means 'OK to buy', grey 'do nothing', yellow, consider selling trader positions', red 'condifer selling invester positions' and brown and black 'watch out, danger'.

   

As can be seen, the reds basically align, but there are differences in the other colour codes.  File compression has meant that the greens are a little different in colour between the two bars, but that has no other meaning.  So a different breadth dataset does make some difference in the result from my breadth scoring.  One thing I have not done with Isa's pool is weed out and constituents that have poor quality date or only limited date.  Though perhaps for young cryptos maybe that is real data!

Overall I don't think there are massive differences in the breadth results from the two datasets, but differences exist and on a scale of days might make a difference on whether I would consider buying or not.