You could try FirstRate Data which has 1-minute bars for major US stocks and indices going back about ten years. A few of the tickers also have...
I found Quandl the best free source for end-of-day, their intraday is paid but you can consider FirstRateData for a free intraday source.
Quandl.com offers csv downloads for US and international stocks. If you only need SP500 stocks and major indices/FX/commodities then you could...
FirstRate Data has 1-minute and 1-hour bars going back 5-10 years for major indices and some NASDAQ stocks but I dont think they have delisted stocks
I had a bunch of datasets from a VaR project I completed which I put up at firstratedata - has 1 min or 1 hour bars for S&P 500 stocks back to...
I put this up at firstratedata.com I struggled to get the 1 min data into shape so it is only up for a few stocks and indices. Otherwise, it is...
I just finished an analysis project and have historical datasets (going back 15 years) for S&P500 constituent stocks in 1min and 5min intervals. I...
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