Benzinga's Volume Movers

Mattress Firm Holding MFRM shares moved up 7% to $40.19. The volume of Mattress Firm shares traded was 729% higher than normal. Mattress Firm Holding reported upbeat Q1 profit. Ambarella AMBA shares climbed 4.99% to $17.00. The volume of Ambarella shares traded was 619% higher than normal. Ambarella reported upbeat first-quarter results. SolarCity SCTY shares gained 4.27% to $38.58. The volume of SolarCity shares traded was 129% higher than normal. SolarCity's trailing-twelve-month revenue is $133.81 million. Cyberonics CYBX shares rose 6.84% to $50.93. The volume of Cyberonics shares traded was 118% higher than normal. Cyberonics reported an 8.1% rise in its fiscal fourth-quarter earnings..