SPX hourly AB=CD pattern

Looking at the hourly chart on SPX.  It may be making a classic AB=CD pattern.

SPX drops from the high of 929.33 on Friday to a low today of 908.86 making the AB leg.  The market then retraced 32% from 908.86 then begins to fall again.  The pattern would be completed around 896.59 unless it extends the downleg.