For reference purposes, below is a chart depicting quarterly S&P500 net profit margins for Q4 2015 – 2019. As seen in the chart, the net profit margin for Q4 2019 is projected. The chart is from the FactSet Earning Insight report of January 17, 2020 p. 2.
An excerpt regarding the trend of net profit margins depicted:
If 10.7% is the actual net profit margin for the quarter, it will mark the first time the index has reported four straight quarters of year-over-year declines in net profit margin since Q4 2008 through Q3 2009.

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