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data for offline exploration

I'm wondering if the community has gathered around any free and distributable external sources for offline exploration? If we focus our attention somewhat, it might be a good way to discover any problems/anomalies with various data sources.

2 responses

I've been downloading EOD and intraday data from Yahoo for sometime. It is free and they don't seem to have "limits" in regards to how much and how fast I can get the data. Google, on the other hands, seems to block me after 50 or so stocks unless you try to incorporate a random timer between downloads (PITA)

I have been using netfonds.se for intraday data.