I am given to understand that historical data comes about through Ninja Trader actually storing the tick data that data feed vendors such as TT and Zenfire provide and then making that stored data available as historical data, rather than the historical data being made available directly from the data vendors...
If my understanding of this is correct, could someone please explain why historical data is not available for ALL supported data vendors? One of the most frustrating aspects of my trading life is not having historical data for the SPI (Aussie ASX200 Share Price Index futures market). I am limited to using PatSystems as they are the only *supported* data vendor that serves up SPI data, but there is no historical data made available. Nor is any historical data available for any other contract served by PatSystems.
I was always under the impression that it was a limitation on the part of Pats that was the problem but now I seemingly understand how historical data is made available, I wonder if the reason Pats data is excluded is due to economic, technological or, (forgive me for suggesting it) political reasons?
Pete
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