Intraday price change for NOC is about $2.71 from the day's low to the day's high.
The previous business day's price range from the open of $256.37 is expected to range from a low of $255.13 to a high of $257.84.
Price moves beyond this range are outside the average.
The previous business day's closing price may be between $256.19 and $256.55 assuming average price movements.
Note that events including news, NOC earnings, or broad market swings will unexpectedly affect price.
Closing prices outside of this range indicate a move outside the average closing price movement.