Intraday price change for PSX is about $1.10 from the day's low to the day's high.
The previous business day's price range from the open of $86.72 is expected to range from a low of $86.22 to a high of $87.32.
Price moves beyond this range are outside the average.
The previous business day's closing price may be between $86.68 and $86.76 assuming average price movements.
Note that events including news, PSX earnings, or broad market swings will unexpectedly affect price.
Closing prices outside of this range indicate a move outside the average closing price movement.