shares of ambarella inc amba rallied more than 13 in the extended session tuesday after the maker of chips for videocameras and other products swung to a profit in its fiscal 2022 third quarter with sales above expectations despite shortages that have become more significant ambarella said it earned 800000 or 2 cents a share in the quarter contrasting with a loss 171 million or 49 cents a share in the yearago period adjusted for onetime items the company earned 57 cents a share revenue rose 64 to 922 million the company said factset consensus called for earnings of 49 cents a share on sales of 90 million the company guided for fiscal 2022 fourthquarter revenue between 885 million and 915 million gross margins between 63 and 64 and operating expenses between 39 million and 41 million our operational execution remains strong yet supply dynamics remain difficult to predict as shortages of other companies components has become a more significant and gating factor to our results and outlook chief executive fermi wang said in a statement shares of ambarella ended the regular trading day down 13