Intraday price change for SM is about $1.17 from the day's low to the day's high.
The previous business day's price range from the open of $15.40 is expected to range from a low of $14.79 to a high of $15.96.
Price moves beyond this range are outside the average.
The previous business day's closing price may be between $15.55 and $15.25 assuming average price movements.
Note that events including news, SM earnings, or broad market swings will unexpectedly affect price.
Closing prices outside of this range indicate a move outside the average closing price movement.