Intraday price change for GSK is about $0.36 from the day's low to the day's high.
The previous business day's price range from the open of $42.79 is expected to range from a low of $42.61 to a high of $42.97.
Price moves beyond this range are outside the average.
The previous business day's closing price may be between $42.79 and $42.79 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.