ISM Manufacturing Index vs. S&P 500 Index
ISM Manufacturing Index vs. S&P 500 Index U.S. factory activity weakened further in December, as the ISM Manufacturing Index slipped to 47.9, short of expectations for 48.3, marking another month of contraction and lingering softness across the industrial sector. The chart shows the correlation between the U.S. ISM Manufacturing Index and the S&P 500 index…