remember, the 644 level is an important support level for AAPL.  644 was the previous reaction high from April 10th and the level in which many bulls dove into AAPL more recently on the break above that price on August 20th (as evidenced by that large green candlestick on above average volume).  a close below that level would confirm that the 8/20 breakout was a bull-trap and all subsequent buyers are underwater.  of course, a close below 644 will have also confirmed the breakdown of that rising wedge pattern (yellow lines) as well.  AAPL closed right on the bottom of that wedge on friday and has gapped down slightly below the wedge this morning but again, right now the 644 support level is the more important level of the two IMO as that key level lies just below the bottom of the wedge at this point.  therefore, if 644 is defended, then prices would likely re-test or even snap back into the wedge.