Intraday price change for ALK is about $1.67 from the day's low to the day's high.
The previous business day's price range from the open of $87.84 is expected to range from a low of $86.98 to a high of $88.66.
Price moves beyond this range are outside the average.
The previous business day's closing price may be between $87.93 and $87.75 assuming average price movements.
Note that events including news, ALK earnings, or broad market swings will unexpectedly affect price.
Closing prices outside of this range indicate a move outside the average closing price movement.