Genesis Microchip (GNSS) was up 20.4% in early trading after posting a fourth-quarter loss of 15 cents a share on revenue of $18.5 million, beating analysts' estimates of a 16-cent loss and $18 million in revenue. The company earned 3 cents a share in the year-ago period.

The maker of digital video and image processors also said it expected revenue of $20 million for the current quarter and 10% growth for the following two quarters.

Also, CEO Paul Russo is stepping down to pursue a new start-up company and will be replaced by Alex Lushtak, the company said.