CNBC Market Wrap is a brief market update show airing on MSNBC weekday afternoons at the half-hour. Margaret Brennan of CNBC usually anchors these updates. The current version of the article or section reads like an advertisement. ... CNBC (until 1991 the Consumer News and Business Channel) is a group of cable and satellite television Business news channels from the U.S., owned and operated by NBC Universal, a joint venture of General Electric and Vivendi Universal. ...