ISM Manufacturing Index vs. S&P 500 Index
ISM Manufacturing Index vs. S&P 500 Index U.S. manufacturing cooled slightly in August. The ISM Manufacturing Index slipped to 54.6, below expectations of 55.6 and marking an eighth straight month of expansion. Growth is still on solid footing. The chart shows the correlation between the U.S. ISM Manufacturing Index and the S&P 500 index year-over-year…