Intraday price change for REGN is about $11.97 from the day's low to the day's high.
The previous business day's price range from the open of $442.04 is expected to range from a low of $435.89 to a high of $447.86.
Price moves beyond this range are outside the average.
The previous business day's closing price may be between $442.27 and $441.81 assuming average price movements.
Note that events including news, REGN earnings, or broad market swings will unexpectedly affect price.
Closing prices outside of this range indicate a move outside the average closing price movement.