Health-care companies rose as traders rotated into some lagging sectors.

Regeneron Pharmaceuticals shares fell sharply in premarket trading Monday after the biotechnology company reported a late-stage study failure of its fianlimab drug candidate in the skin cancer melanoma.

An American contracted Ebola while working in the Democratic Republic of Congo, where the outbreak of the fatal virus is spreading.

Write to Rob Curran at rob.curran@dowjones.com

(END) Dow Jones Newswires