The US dollar index penetrated support yesterday at 78.80 and today it has obliterated that support.
Since breaking out of the range bordered by 78.80 on the bottom and 81.30/40 on top, look for a slide of somewhat over 2.5 cents to the 76.30 area in the weeks ahead.
Since EUR/USD makes up the bulk of the index, a further rally in the main pairing is to be expected in coming days.