Month-end rebalancing flipped, and the dollar got its bounce
August opened with the greenback on the front foot for mechanical reasons. The rebalancing flows that weighed on the dollar through late July reversed with the calendar turn, and European accounts trimmed euro longs into the new month. EUR/USD slipped from 1.0810 to test 1.0770, and the DXY firmed to 104.90, recovering the 105 pivot zone it had ceded during the July slide.
Flow-driven moves are not signals. Treating a month-end reversal as a trend change is one of the most reliable ways retail money gets caught offside in the first week of a month.