A measure of future U.S. economic growth rose in the latest week, as did the growth rate on an annualized basis, 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 December 2 from a revised 120.8 the previous week. It was originally reported at 120.9.

The index's annualized growth rate rose to minus 7.6 percent from minus 7.8 percent a week earlier.