Investar (ISTR) Reports Q3 Loss, Tops Revenue Estimates Posted byZacks Equity Research October 22, 2021 Leave a comment on Investar (ISTR) Reports Q3 Loss, Tops Revenue Estimates Investar (ISTR) delivered earnings and revenue surprises of 0.93% and 3.67%, respectively, for the quarter ended September 2021. Do the numbers hold clues to what lies ahead for the stock?