Intraday price change for ARNA is about $0.84 from the day's low to the day's high.
The previous business day's price range from the open of $23.42 is expected to range from a low of $23.04 to a high of $23.88.
Price moves beyond this range are outside the average.
The previous business day's closing price may be between $23.36 and $23.48 assuming average price movements.
Note that events including news, ARNA earnings, or broad market swings will unexpectedly affect price.
Closing prices outside of this range indicate a move outside the average closing price movement.