A measure of future U.S. economic growth rose in the latest week, while the annualized growth rate remained at a nine-week high, a research group said on Friday.

The Economic Cycle Research Institute, a New York-based  independent forecasting group, said its Weekly Leading Index  rose to 122.5 in the week ended August 3 from 122.1 the previous  week. That was originally reported as 122.2.

The index's annualized growth rate held steady at minus 1.3 percent from a week earlier.