Intraday price change for CMCSA is about $0.63 from the day's low to the day's high.
The previous business day's price range from the open of $39.40 is expected to range from a low of $39.08 to a high of $39.71.
Price moves beyond this range are outside the average.
The previous business day's closing price may be between $39.35 and $39.45 assuming average price movements.
Note that events including news, CMCSA earnings, or broad market swings will unexpectedly affect price.
Closing prices outside of this range indicate a move outside the average closing price movement.