I’ve been searching a lot for free data to import it into NinjaTrader 7 (8) for practicing purposes. I’ve spent hours in searching/downloading files for this. Finally, I’ve found the way to download free intraday data and import that into NT.
To see how to import them, see the video – Import DataFeed Into NinjaTrader
Then, dont forget to choose the correct “end date”(or last X bars) to include the dates for the imported period.