Reporting an investment at its fair value requires adjusting its carrying amount for changes in fair value after its acquisition (or since the last reporting date if it was held at that time). Such changes are called unrealized holding gains and losses because they haven't yet been realized through the sale of the security. If a security is classified as available-for-sale, and an unrealized holding loss is viewed as giving rise to an other-than-temporary (OTT) impairment, how is it reported in the financial statements?