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Dow set to drop more than 100 points on economic worries, Biogen shares plummet

Fred Imbert

U.S. stock index futures fell on Thursday morning as investors digested the Federal Reserve's latest announcement on monetary policy as well as a sharp drop in Biogen shares. At 7:48 a.m. ET, Dow Jones Industrial Average futures indicated a decline of 136 points at the open. The Dow closed lower on Wednesday after the Federal Reserve announced a more dovish policy.