The Dow Jones Industrials remained negative 2.42 points to 38,586.34.
The much-broader index regained 9.08 points to 5,440.68.
The NASDAQ surged 26.89 points, to 17,715.77.
Amazon, Alphabet and Meta Platforms slipped slightly. Nvidia shares also rose to a record high before pulling back.
The major averages were mixed last week, with the blue-chip Dow posting its third losing week in four, while the S&P and Nasdaq rallied to record highs and notched their seventh up week in the last eight.
Investors will assess this week the sustainability of the ongoing rally and whether it can continue. Markets will be closed Wednesday for the Juneteenth holiday.
Investors are monitoring May retail sales data, due out on Tuesday, as well as home sales and housing starts data later in the week.
Prices for the 10-year Treasury sagged, lifting yields to 4.29% from Friday’s 4.21%. Treasury prices and yields move in opposite directions.
Oil prices gained 85 cents to $79.30 U.S. a barrel.
Gold prices fell $23.o0 to $2,326.10