An investor bought 1000 shares of ABC stock at $45 per share. 6 months later he sold 400 shares at $48. What is the unrealized gain / loss with the stock price at $48 per share?

Explanations

The question asks for the unrealized gain or loss - that is the amount that has not been realized or closed as of yet. This unrealized gain is 600 shares at a gain of $3 each = $1800 unrealized gain.