Probably to take advantage of the LIC CGT benefit, AFI have divided their portfolio into trading (~10% of total NAV and held for less than 12 months) and investment (~90% and held for 12 months or more) portfolios.
Unrealised gains in the investment portfolio are put through equity. Realised and unrealised gains/losses in trading portfolio and realised gains/loss in investment portfolio are put through P&L.
Not sure how CTN holds and values their assets. The annual report should give you clues. Each LIC has some flexibility to choose how they do this.
Sorry if I have confused you any further.
CTN Price at posting:
81.0¢ Sentiment: None Disclosure: Not Held