Available-for-sale securities. Investments in debt securities that are classified as available for sale and equity securities that have readily determinable fair values that are classified as available for sale shall be measured subsequently at fair value in the statement of financial position. Unrealized holding gains and losses for available-for-sale securities (including those classified as current assets) shall be excluded from earnings and reported in other comprehensive income until realized except as indicated in the following sentence. All or a portion of the unrealized holding gain and loss of an available-for-sale security that is designated as being hedged in a fair.