you'll never stop searching ideal data until you look this problem at from another point of view - i mean a part of theory of probability that concerns laws of distribution and mathematical expectancy - it's fanny, but even the most flawed data could be then lucratively tradable on this basis and your question from phsychology side in dispute perverted by mass media and zombie neibourhood transform itself into rational prosperity 
I'm sure ketchup is onto something. Or maybe just on something.
However, I have certainly seen that various sources of EOD data will give differing values for O, H. L, and C. This is very frustrating but seems to be an inherent drawback of these free services. I have put the same problem to users on this site but no practical answer, it seems people just take pot-luck as to which data to believe.
However, I have certainly seen that various sources of EOD data will give differing values for O, H. L, and C. This is very frustrating but seems to be an inherent drawback of these free services. I have put the same problem to users on this site but no practical answer, it seems people just take pot-luck as to which data to believe.