A trading debt security is a debt security held principally for sale in the near term under the applicable classification guidance. It is measured at fair value, and changes in fair value enter earnings. ASC 320-10-35-1 sets the measurement destinations for debt-security classifications.
Keep interest and fair-value effects distinct
Trading classification does not remove the effective-interest schedule. Calculate contractual cash interest and effective-yield interest first. Update amortized cost for the discount or premium. Then compare that updated amount with the controlled reporting-date fair value.
For example, update the trading bond's basis to $488,550.73 before using its $490,000 market value. The $1,449.27 fair-value gain enters earnings. Interest revenue is a separate earnings effect. ASC 320-10-35-4 states that interest income, including acquisition discount or premium amortization, is included in earnings for all three debt-security categories.
Avoid two common routing errors
An unsold gain is not sent to OCI merely because it is sometimes called "unrealized." Reporting location follows the classification rule. Also, a portfolio manager's short expected holding period does not replace the formal classification evidence. Keep the security identifier, classification approval, market source, valuation date, amortized-cost bridge, and earnings posting together. This lets a reviewer reproduce both the interest row and the fair-value adjustment without mixing them.
Put the concept to work
Apply this concept
- Given a supported trading classification and supplied fair value, compute the period-end adjustment and route it to earnings while preserving interest revenue separately.
Learning resources
Choose a lesson, try an application, or inspect the sources behind this concept.
Build on these ideas
- Debt security investment — Understand
To apply this concept: Required. The learner must first identify a debt security.