Question 1

What is the difference between realized and unrealized PnL?

Accepted Answer

Realized PnL is profit or loss on positions you've closed — it's locked in. Unrealized PnL is the paper gain/loss on positions still open; it changes with price and isn't yours until you sell.

Question 2

Why does the distinction matter?

Accepted Answer

Because unrealized gains can vanish. Traders who count paper profit as real often give it all back. Knowing what's banked versus at-risk keeps decisions honest.

実現損益と未実現損益計算ツール

紙の利益は利益ではない