Donald Trump pounced on reports the FBI is digging more into Hillary Clinton's emails Friday. Stocks that stand to do well with him in the White House remained relatively flat.
Strong demand drives results and gains for Boeing, Akamai and others.
But several airline and retail stocks are proving highly volatile.
Northrop Grumman (NOC) beat Wall Street's expectations for 2016 third quarter results and issued a positive full-year outlook on Wednesday.