Home Business Ericsson warns on negative margin impact, shares fall 7% Business Ericsson warns on negative margin impact, shares fall 7% By Genpie - July 17, 2019 133 0 Facebook Twitter Google+ Pinterest WhatsApp Telecoms equipment maker Ericsson posted quarterly earnings in line with forecasts but said it expected costs related to winning new contracts for its network business to hit profit margins in the second half of the year.