 In addition, TrimTabs also provides a comprehensive assessment of the overall health of the U.S. economy by tracking wage and salary growth and employment growth based on real-time income tax withholdings data from the U.S. Treasury, credit indicators, unemployment claims, surveys of manufacturers and purchasing managers, and housing indicators.The overall health of the domestic economy is update each week through their TrimTabs Macroeconomic Index (TTMI), a correlation weighted index of 16 leading economic indicators.It has done an excellent job identifying major economic inflection points.