Intraday price change for CIEN is about $0.55 from the day's low to the day's high.
The previous business day's price range from the open of $21.86 is expected to range from a low of $21.54 to a high of $22.09.
Price moves beyond this range are outside the average.
The previous business day's closing price may be between $21.91 and $21.81 assuming average price movements.
Note that events including news, CIEN earnings, or broad market swings will unexpectedly affect price.
Closing prices outside of this range indicate a move outside the average closing price movement.