Intraday price change for GSK is about $0.32 from the day's low to the day's high.
The previous business day's price range from the open of $40.20 is expected to range from a low of $40.02 to a high of $40.35.
Price moves beyond this range are outside the average.
The previous business day's closing price may be between $40.22 and $40.18 assuming average price movements.
Note that events including news, GSK earnings, or broad market swings will unexpectedly affect price.
Closing prices outside of this range indicate a move outside the average closing price movement.