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Does anyone know of a reliable (free) source of historical stock split information? There's a YQL api for pulling down 'key stats' on a symbol but it only contains the LastSplitDate. Adjusted close prices aren't interesting because I'm trying to determine when anomalies in fundamental technical analyses occur due to 'discontinuous' OHLC prices.

(there's some similar questions out there, but none that seem to directly ask about a known free data source)

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some links which might help you http://quant.caltech.edu/historical-stock-data.html In the quantmod R package ,the split information is in the "Dividend Only" CSV: http://ichart.finance.yahoo.com/x?s=IBM&a=00&b=2&c=1962&d=04&e=25&f=2011&g=v&y=0&z=30000

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The ichart finance link looks exactly like what I need, thanks. –  0x19af Jul 4 '14 at 21:41

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