Avid Technology Inc.(Nasdaq: AVID) shares rose 11.3 percent to $21.24, on volume of 436,468, compared to an average of 129,028, after the maker of recording equipment and software on Friday reported fourth-quarter revenue above forecasts.
United States Natural Gas Fund (NYSE: UNG) traded in 40.1 million shares Monday, compared to an average of 25.1 million. Share prices for UNG drifted lower, though, by 4.7 percent to $5.59. UNG has lost at least 35 percent in each of the last three calendar years, according to Morningstar.
Travelzoo Inc. (Nasdaq: TZOO) felt the bruises Monday, losing 9.3 percent in price to $40.93, on volume of 822,782 shares, nearly triple its daily average, even as it announced it had surpassed 22 million subscribers worldwide.