Each market data provider uses different methods for tick filtering, throttling, and time stamping. Therefore, it may be possible that Ninjatrader users with different data feeds will see slight differences when plotting the same instrument and timeframe or when comparing to external sources like TradingView.

More information can be found below on this page:

https://ninjatrader.com/support/helpGuides/nt8/?how_bars_are_built.htm