0151 GMT - The U.S. Dollar Index could rebound in the near term, as U.S. PPI and CPI data loom, StoneX's Matt Simpson says in commentary. "The stage is set for a potential catalyst, particularly if inflation data surprises to the upside," the senior market analyst says. "With the U.S. Dollar Index having already fallen sharply, even a modest upside surprise in PPI or CPI could provide the excuse for a near-term rebound in" the index, Simpson adds. U.S. PPI and CPI reports are due out today and Friday, respectively. The U.S. Dollar Index is little changed at 98.792, LSEG data show.