Logistics & Purchasing, said its index of service industry activity rose marginally to 56.2 in January from 56.1 in December. The measure of new orders declined, which ``casts doubt on the strength of the recovery in the service sector,'' said Nomura economist Zhiwei Zhang in a report.
In other markets, the euro was flat at $1.3519, losing early gains after French President Francois Hollande said eurozone governments should help control the value of their shared currency.
The dollar rose 1 percent against the Japanese yen, to 93.27.
Elsewhere, the benchmark crude oil contract for March delivery rose 67 cents to $96.84 per barrel in electronic trading on the New York Mercantile Exchange.