One of Wall Street's veteran economic forecasters is toning down his economic growth forecast.
The Economic Cycle Research Institute's Lakshman Achuthan told CNBC his leading indicators are pointing to a slowdown that's picking up momentum — highlighting one particular trend in the latest unemployment rate chart that supports his case.
"What really caught our eye, is that unemployment rate — where it's just flat-lined since October," the firm's chief operations officer said Friday on CNBC's "Trading Nation."