In your own words:

FASB ASC 320 requires companies to assign their portfolio of investments securities into (1) trading securities, (2) securities available for sale, and (3) held-to-maturity securities.

Required:

Define each of these categories of securities and discuss the accounting treatment for each category.

Discuss how companies are required to assign each category of securities into its current and noncurrent portions.

Some individuals maintain that the only proper accounting treatment for all marketable securities is current value. Others maintain that this treatment might allow companies to "manage earnings." Discuss the arguments for each position.