The euro languished at one-year lows early on Tuesday, following an aimless session overnight with market activity severely hampered by a holiday in the United States.
The common currency last traded at $1.3129, having drifted in a slim $1.3119/1.3146 range for all of Monday. That helped keep the dollar index near a 13-1/2 month peak of 82.804.
Against the yen, the greenback held just below a one-week high of 104.36. The euro dithered at 136.94, not far from a two-week low of 136.42 set last Thursday.