Investar (ISTR) Tops Q4 Earnings Estimates Posted byZacks Equity Research January 28, 2022 Leave a comment on Investar (ISTR) Tops Q4 Earnings Estimates Investar (ISTR) delivered earnings and revenue surprises of 1.82% and 1.73%, respectively, for the quarter ended December 2021. Do the numbers hold clues to what lies ahead for the stock?