The US Dollar has been rising since Oct, 27. Both on the weekly and the daily chart negative divergence is building up indicating exhaustion and a possible near term reversal. For stocks such an occurrence could be a sign for the start of a new rally triggering in SPY the buy signal TrendXplorer issued the first trading day of 2012. Notice that the both the signals on SPY and SH still await confirmation.
(Dollar charts are shown with closing prices only for better distinction.)