US equity indexes traded mixed after midday Monday amid declines in technology and communication services.

The Nasdaq Composite fell 0.4% to 19,456.1. The Dow Jones Industrial Average, however, rose 0.4% to 43,586.8. The S&P 500 climbed less than 0.1% to 6,018.2 after declining earlier in the session. Most sectors were up intraday, with healthcare, financials, and real estate leading the gainers.

In economic news, the Dallas Fed's monthly manufacturing index fell to minus 8.3 in February from 14.1 in January, compared with expectations for 6.4 in a survey compiled by Bloomberg. The index indicates a return to contraction, which contrasts with the Empire State and the Philadelphia Fed readings released earlier that suggested expansion.

US Treasury yields were mixed intraday, with the 10-year down 1.4 basis points to 4.41%. The two-year yield was little changed at 4.19%.

In company news, Amgen (AMGN) will invest an initial $200 million this year in its new technology center in southern India, Reuters reported Monday, citing Chief Executive Robert Bradway. Amgen confirmed the plans in a statement sent to MT Newswires, saying that the investment would support the acceleration of its digital capabilities through AI and data science. Shares jumped 2.3% intraday, the top performer on the Nasdaq.

Jefferies upgraded Nike (NKE) to buy from hold while adjusting its price target to $115 from $75. Shares of the sportswear retailer traded up 5.1% intraday, the top performer on the S&P 500 and the Dow.

West Texas Intermediate crude oil futures rose 0.4% to $70.69 a barrel after touching its lowest level so far this year on Friday.

Gold futures rose 0.2% to $2,958.10, while their silver counterparts dropped 1.3% to $32.91.