The S&s performance index is up 7.8%, or 2.7%, for the year to date.
The benchmark has been up for six straight quarters.
The index is the benchmark for measuring corporate earnings, profit and stock prices.
It was last up about 8% in 2017.
The S &p 500 index is a broad index with several sub-indexes and an underlying total market index.
For more, read the S &s earnings and stock market index article The Dow Jones Industrial Average is up 9.9%, or 1.4%, at 20,521.26.
The Nasdaq Composite is up 8.5%, or 3.9% at 7,093.60.
The Russell 2000 is up 5.1%, or 0.3%, at 3,873.13.
The tech index is down 3.7% for the month.