NMRK ▲ +0.2% - Newmark Group, Inc. $NMRK NMRK - Newmark Advises Havas Health in 254,000-Square-Foot Headquarters Expansion & Extension at 200 Madison Avenue Newmark Group advised Havas Health on a 254,000-square-foot headquarters expansion and extension at 200 Madison Avenue in New York. The stock rose 0.2% today, likely reflecting investor confidence in the firm's continued success securing major real estate advisory mandates from prominent corporate clients. 09-SEP-2026 09:01 AM ET