Quidel (QDEL) Tops Q4 Earnings and Revenue Estimates Posted byZacks Equity Research February 17, 2022 Leave a comment on Quidel (QDEL) Tops Q4 Earnings and Revenue Estimates Quidel (QDEL) delivered earnings and revenue surprises of 49.08% and 0.29%, respectively, for the quarter ended December 2021. Do the numbers hold clues to what lies ahead for the stock?