hello,
few years ago I wanted to buy some information for daily price for all NASDAQ, NYSE and AMEX companies to try to analyze them. I lost too much time in searching and didn't find organization that can provide me with such information.
I succeed to collect this information in a single excel 2007 file, which has historical data about companies names, stock exchange, quotes, daily high, low, open, close information for a whole of year. If somebody is interested:
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