 Zoom Video Communications Inc NASDAQ:ZM has lowered its annual revenue forecast as the video-conferencing platform expects a hit from a slowdown in its online business, although its third-quarter revenue rose. After the market close on Monday, Zoom said it now expects its annual revenue to be between 4.37 billion and 4.38 billion, compared with an earlier outlook of 4.39 billion and 4.40 billion. 