Hi all, Currently developing some systems and use data available on my broker account or through free sources (yahoo finance, barchart.com etc). However, I find the detail lacking (i.e. only daily data) and would ideally like to breakdown to 4 hour at least. My broker only has data below daily timeframe for 12 months; which is not enough for robust backtesting. I'm looking for some recommendations on data sources - ideally free ones, but happy to pay if necessary. Where are the best sources? Many thanks in advance.